257465520

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{173}}^1$

素因数の和:261

約数の個数: 320

約数和(自身を含む): 978687360

約数和(自身を除く): 721221840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 48, 52, 53, 54, 60, 65, 72, 78, 80, 90, 104, 106, 108, 117, 120, 130, 135, 144, 156, 159, 173, 180, 195, 208, 212, 216, 234, 240, 260, 265, 270, 312, 318, 346, 351, 360, 390, 424, 432, 468, 477, 519, 520, 530, 540, 585, 624, 636, 689, 692, 702, 720, 780, 795, 848, 865, 936, 954, 1038, 1040, 1060, 1080, 1170, 1272, 1378, 1384, 1404, 1431, 1557, 1560, 1590, 1730, 1755, 1872, 1908, 2067, 2076, 2120, 2160, 2249, 2340, 2385, 2544, 2595, 2756, 2768, 2808, 2862, 3114, 3120, 3180, 3445, 3460, 3510, 3816, 4134, 4152, 4240, 4498, 4671, 4680, 4770, 5190, 5512, 5616, 5724, 6201, 6228, 6360, 6747, 6890, 6920, 7020, 7155, 7632, 7785, 8268, 8304, 8996, 9169, 9342, 9360, 9540, 10335, 10380, 11024, 11245, 11448, 12402, 12456, 12720, 13494, 13780, 13840, 14040, 14310, 15570, 16536, 17992, 18338, 18603, 18684, 19080, 20241, 20670, 20760, 22490, 22896, 23355, 24804, 24912, 26988, 27507, 27560, 28080, 28620, 31005, 31140, 33072, 33735, 35984, 36676, 37206, 37368, 38160, 40482, 41340, 41520, 44980, 45845, 46710, 49608, 53976, 55014, 55120, 57240, 60723, 62010, 62280, 67470, 73352, 74412, 74736, 80964, 82521, 82680, 89960, 91690, 93015, 93420, 99216, 101205, 107952, 110028, 114480, 119197, 121446, 124020, 124560, 134940, 137535, 146704, 148824, 161928, 165042, 165360, 179920, 183380, 186030, 186840, 202410, 220056, 238394, 242892, 247563, 248040, 269880, 275070, 297648, 303615, 323856, 330084, 357591, 366760, 372060, 373680, 404820, 412605, 440112, 476788, 485784, 495126, 496080, 539760, 550140, 595985, 607230, 660168, 715182, 733520, 744120, 809640, 825210, 953576, 971568, 990252, 1072773, 1100280, 1191970, 1214460, 1237815, 1320336, 1430364, 1488240, 1619280, 1650420, 1787955, 1907152, 1980504, 2145546, 2200560, 2383940, 2428920, 2475630, 2860728, 3218319, 3300840, 3575910, 3961008, 4291092, 4767880, 4857840, 4951260, 5363865, 5721456, 6436638, 6601680, 7151820, 8582184, 9535760, 9902520, 10727730, 12873276, 14303640, 16091595, 17164368, 19805040, 21455460, 25746552, 28607280, 32183190, 42910920, 51493104, 64366380, 85821840, 128732760, 257465520]

約数ペア:

[(1, 257465520), (2, 128732760), (3, 85821840), (4, 64366380), (5, 51493104), (6, 42910920), (8, 32183190), (9, 28607280), (10, 25746552), (12, 21455460), (13, 19805040), (15, 17164368), (16, 16091595), (18, 14303640), (20, 12873276), (24, 10727730), (26, 9902520), (27, 9535760), (30, 8582184), (36, 7151820), (39, 6601680), (40, 6436638), (45, 5721456), (48, 5363865), (52, 4951260), (53, 4857840), (54, 4767880), (60, 4291092), (65, 3961008), (72, 3575910), (78, 3300840), (80, 3218319), (90, 2860728), (104, 2475630), (106, 2428920), (108, 2383940), (117, 2200560), (120, 2145546), (130, 1980504), (135, 1907152), (144, 1787955), (156, 1650420), (159, 1619280), (173, 1488240), (180, 1430364), (195, 1320336), (208, 1237815), (212, 1214460), (216, 1191970), (234, 1100280), (240, 1072773), (260, 990252), (265, 971568), (270, 953576), (312, 825210), (318, 809640), (346, 744120), (351, 733520), (360, 715182), (390, 660168), (424, 607230), (432, 595985), (468, 550140), (477, 539760), (519, 496080), (520, 495126), (530, 485784), (540, 476788), (585, 440112), (624, 412605), (636, 404820), (689, 373680), (692, 372060), (702, 366760), (720, 357591), (780, 330084), (795, 323856), (848, 303615), (865, 297648), (936, 275070), (954, 269880), (1038, 248040), (1040, 247563), (1060, 242892), (1080, 238394), (1170, 220056), (1272, 202410), (1378, 186840), (1384, 186030), (1404, 183380), (1431, 179920), (1557, 165360), (1560, 165042), (1590, 161928), (1730, 148824), (1755, 146704), (1872, 137535), (1908, 134940), (2067, 124560), (2076, 124020), (2120, 121446), (2160, 119197), (2249, 114480), (2340, 110028), (2385, 107952), (2544, 101205), (2595, 99216), (2756, 93420), (2768, 93015), (2808, 91690), (2862, 89960), (3114, 82680), (3120, 82521), (3180, 80964), (3445, 74736), (3460, 74412), (3510, 73352), (3816, 67470), (4134, 62280), (4152, 62010), (4240, 60723), (4498, 57240), (4671, 55120), (4680, 55014), (4770, 53976), (5190, 49608), (5512, 46710), (5616, 45845), (5724, 44980), (6201, 41520), (6228, 41340), (6360, 40482), (6747, 38160), (6890, 37368), (6920, 37206), (7020, 36676), (7155, 35984), (7632, 33735), (7785, 33072), (8268, 31140), (8304, 31005), (8996, 28620), (9169, 28080), (9342, 27560), (9360, 27507), (9540, 26988), (10335, 24912), (10380, 24804), (11024, 23355), (11245, 22896), (11448, 22490), (12402, 20760), (12456, 20670), (12720, 20241), (13494, 19080), (13780, 18684), (13840, 18603), (14040, 18338), (14310, 17992), (15570, 16536)]