391264640

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:141

約数の個数: 256

約数和(自身を含む): 1093962240

約数和(自身を除く): 702697600

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 37, 40, 41, 52, 62, 64, 65, 74, 80, 82, 104, 124, 128, 130, 148, 155, 160, 164, 185, 205, 208, 248, 260, 296, 310, 320, 328, 370, 403, 410, 416, 481, 496, 520, 533, 592, 620, 640, 656, 740, 806, 820, 832, 962, 992, 1040, 1066, 1147, 1184, 1240, 1271, 1312, 1480, 1517, 1612, 1640, 1664, 1924, 1984, 2015, 2080, 2132, 2294, 2368, 2405, 2480, 2542, 2624, 2665, 2960, 3034, 3224, 3280, 3848, 3968, 4030, 4160, 4264, 4588, 4736, 4810, 4960, 5084, 5248, 5330, 5735, 5920, 6068, 6355, 6448, 6560, 7585, 7696, 8060, 8320, 8528, 9176, 9620, 9920, 10168, 10660, 11470, 11840, 12136, 12710, 12896, 13120, 14911, 15170, 15392, 16120, 16523, 17056, 18352, 19240, 19721, 19840, 20336, 21320, 22940, 23680, 24272, 25420, 25792, 26240, 29822, 30340, 30784, 32240, 33046, 34112, 36704, 38480, 39442, 40672, 42640, 45880, 47027, 48544, 50840, 51584, 59644, 60680, 61568, 64480, 66092, 68224, 73408, 74555, 76960, 78884, 81344, 82615, 85280, 91760, 94054, 97088, 98605, 101680, 119288, 121360, 128960, 132184, 146816, 149110, 153920, 157768, 162688, 165230, 170560, 183520, 188108, 194176, 197210, 203360, 235135, 238576, 242720, 257920, 264368, 298220, 307840, 315536, 330460, 341120, 367040, 376216, 394420, 406720, 470270, 477152, 485440, 528736, 596440, 611351, 631072, 660920, 734080, 752432, 788840, 813440, 940540, 954304, 970880, 1057472, 1192880, 1222702, 1262144, 1321840, 1504864, 1577680, 1881080, 1908608, 2114944, 2385760, 2445404, 2524288, 2643680, 3009728, 3056755, 3155360, 3762160, 4771520, 4890808, 5287360, 6019456, 6113510, 6310720, 7524320, 9543040, 9781616, 10574720, 12227020, 12621440, 15048640, 19563232, 24454040, 30097280, 39126464, 48908080, 78252928, 97816160, 195632320, 391264640]

約数ペア:

[(1, 391264640), (2, 195632320), (4, 97816160), (5, 78252928), (8, 48908080), (10, 39126464), (13, 30097280), (16, 24454040), (20, 19563232), (26, 15048640), (31, 12621440), (32, 12227020), (37, 10574720), (40, 9781616), (41, 9543040), (52, 7524320), (62, 6310720), (64, 6113510), (65, 6019456), (74, 5287360), (80, 4890808), (82, 4771520), (104, 3762160), (124, 3155360), (128, 3056755), (130, 3009728), (148, 2643680), (155, 2524288), (160, 2445404), (164, 2385760), (185, 2114944), (205, 1908608), (208, 1881080), (248, 1577680), (260, 1504864), (296, 1321840), (310, 1262144), (320, 1222702), (328, 1192880), (370, 1057472), (403, 970880), (410, 954304), (416, 940540), (481, 813440), (496, 788840), (520, 752432), (533, 734080), (592, 660920), (620, 631072), (640, 611351), (656, 596440), (740, 528736), (806, 485440), (820, 477152), (832, 470270), (962, 406720), (992, 394420), (1040, 376216), (1066, 367040), (1147, 341120), (1184, 330460), (1240, 315536), (1271, 307840), (1312, 298220), (1480, 264368), (1517, 257920), (1612, 242720), (1640, 238576), (1664, 235135), (1924, 203360), (1984, 197210), (2015, 194176), (2080, 188108), (2132, 183520), (2294, 170560), (2368, 165230), (2405, 162688), (2480, 157768), (2542, 153920), (2624, 149110), (2665, 146816), (2960, 132184), (3034, 128960), (3224, 121360), (3280, 119288), (3848, 101680), (3968, 98605), (4030, 97088), (4160, 94054), (4264, 91760), (4588, 85280), (4736, 82615), (4810, 81344), (4960, 78884), (5084, 76960), (5248, 74555), (5330, 73408), (5735, 68224), (5920, 66092), (6068, 64480), (6355, 61568), (6448, 60680), (6560, 59644), (7585, 51584), (7696, 50840), (8060, 48544), (8320, 47027), (8528, 45880), (9176, 42640), (9620, 40672), (9920, 39442), (10168, 38480), (10660, 36704), (11470, 34112), (11840, 33046), (12136, 32240), (12710, 30784), (12896, 30340), (13120, 29822), (14911, 26240), (15170, 25792), (15392, 25420), (16120, 24272), (16523, 23680), (17056, 22940), (18352, 21320), (19240, 20336), (19721, 19840)]