257865120

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{197}}^1$

素因数の和:325

約数の個数: 240

約数和(自身を含む): 923724648

約数和(自身を除く): 665859528

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 96, 101, 108, 120, 135, 144, 160, 162, 180, 197, 202, 216, 240, 270, 288, 303, 324, 360, 394, 404, 405, 432, 480, 505, 540, 591, 606, 648, 720, 788, 808, 810, 864, 909, 985, 1010, 1080, 1182, 1212, 1296, 1440, 1515, 1576, 1616, 1620, 1773, 1818, 1970, 2020, 2160, 2364, 2424, 2592, 2727, 2955, 3030, 3152, 3232, 3240, 3546, 3636, 3940, 4040, 4320, 4545, 4728, 4848, 5319, 5454, 5910, 6060, 6304, 6480, 7092, 7272, 7880, 8080, 8181, 8865, 9090, 9456, 9696, 10638, 10908, 11820, 12120, 12960, 13635, 14184, 14544, 15760, 15957, 16160, 16362, 17730, 18180, 18912, 19897, 21276, 21816, 23640, 24240, 26595, 27270, 28368, 29088, 31520, 31914, 32724, 35460, 36360, 39794, 40905, 42552, 43632, 47280, 48480, 53190, 54540, 56736, 59691, 63828, 65448, 70920, 72720, 79588, 79785, 81810, 85104, 87264, 94560, 99485, 106380, 109080, 119382, 127656, 130896, 141840, 145440, 159176, 159570, 163620, 170208, 179073, 198970, 212760, 218160, 238764, 255312, 261792, 283680, 298455, 318352, 319140, 327240, 358146, 397940, 425520, 436320, 477528, 510624, 537219, 596910, 636704, 638280, 654480, 716292, 795880, 851040, 895365, 955056, 1074438, 1193820, 1276560, 1308960, 1432584, 1591760, 1611657, 1790730, 1910112, 2148876, 2387640, 2553120, 2686095, 2865168, 3183520, 3223314, 3581460, 4297752, 4775280, 5372190, 5730336, 6446628, 7162920, 8058285, 8595504, 9550560, 10744380, 12893256, 14325840, 16116570, 17191008, 21488760, 25786512, 28651680, 32233140, 42977520, 51573024, 64466280, 85955040, 128932560, 257865120]

約数ペア:

[(1, 257865120), (2, 128932560), (3, 85955040), (4, 64466280), (5, 51573024), (6, 42977520), (8, 32233140), (9, 28651680), (10, 25786512), (12, 21488760), (15, 17191008), (16, 16116570), (18, 14325840), (20, 12893256), (24, 10744380), (27, 9550560), (30, 8595504), (32, 8058285), (36, 7162920), (40, 6446628), (45, 5730336), (48, 5372190), (54, 4775280), (60, 4297752), (72, 3581460), (80, 3223314), (81, 3183520), (90, 2865168), (96, 2686095), (101, 2553120), (108, 2387640), (120, 2148876), (135, 1910112), (144, 1790730), (160, 1611657), (162, 1591760), (180, 1432584), (197, 1308960), (202, 1276560), (216, 1193820), (240, 1074438), (270, 955056), (288, 895365), (303, 851040), (324, 795880), (360, 716292), (394, 654480), (404, 638280), (405, 636704), (432, 596910), (480, 537219), (505, 510624), (540, 477528), (591, 436320), (606, 425520), (648, 397940), (720, 358146), (788, 327240), (808, 319140), (810, 318352), (864, 298455), (909, 283680), (985, 261792), (1010, 255312), (1080, 238764), (1182, 218160), (1212, 212760), (1296, 198970), (1440, 179073), (1515, 170208), (1576, 163620), (1616, 159570), (1620, 159176), (1773, 145440), (1818, 141840), (1970, 130896), (2020, 127656), (2160, 119382), (2364, 109080), (2424, 106380), (2592, 99485), (2727, 94560), (2955, 87264), (3030, 85104), (3152, 81810), (3232, 79785), (3240, 79588), (3546, 72720), (3636, 70920), (3940, 65448), (4040, 63828), (4320, 59691), (4545, 56736), (4728, 54540), (4848, 53190), (5319, 48480), (5454, 47280), (5910, 43632), (6060, 42552), (6304, 40905), (6480, 39794), (7092, 36360), (7272, 35460), (7880, 32724), (8080, 31914), (8181, 31520), (8865, 29088), (9090, 28368), (9456, 27270), (9696, 26595), (10638, 24240), (10908, 23640), (11820, 21816), (12120, 21276), (12960, 19897), (13635, 18912), (14184, 18180), (14544, 17730), (15760, 16362), (15957, 16160)]