389655640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{461}}^1$

素因数の和:613

約数の個数: 128

約数和(自身を含む): 1023865920

約数和(自身を除く): 634210280

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 113, 136, 170, 187, 220, 226, 340, 374, 440, 452, 461, 565, 680, 748, 904, 922, 935, 1130, 1243, 1496, 1844, 1870, 1921, 2260, 2305, 2486, 3688, 3740, 3842, 4520, 4610, 4972, 5071, 6215, 7480, 7684, 7837, 9220, 9605, 9944, 10142, 12430, 15368, 15674, 18440, 19210, 20284, 21131, 24860, 25355, 31348, 38420, 39185, 40568, 42262, 49720, 50710, 52093, 62696, 76840, 78370, 84524, 86207, 101420, 104186, 105655, 156740, 169048, 172414, 202840, 208372, 211310, 260465, 313480, 344828, 416744, 422620, 431035, 520930, 573023, 689656, 845240, 862070, 885581, 1041860, 1146046, 1724140, 1771162, 2083720, 2292092, 2865115, 3448280, 3542324, 4427905, 4584184, 5730230, 7084648, 8855810, 9741391, 11460460, 17711620, 19482782, 22920920, 35423240, 38965564, 48706955, 77931128, 97413910, 194827820, 389655640]

約数ペア:

[(1, 389655640), (2, 194827820), (4, 97413910), (5, 77931128), (8, 48706955), (10, 38965564), (11, 35423240), (17, 22920920), (20, 19482782), (22, 17711620), (34, 11460460), (40, 9741391), (44, 8855810), (55, 7084648), (68, 5730230), (85, 4584184), (88, 4427905), (110, 3542324), (113, 3448280), (136, 2865115), (170, 2292092), (187, 2083720), (220, 1771162), (226, 1724140), (340, 1146046), (374, 1041860), (440, 885581), (452, 862070), (461, 845240), (565, 689656), (680, 573023), (748, 520930), (904, 431035), (922, 422620), (935, 416744), (1130, 344828), (1243, 313480), (1496, 260465), (1844, 211310), (1870, 208372), (1921, 202840), (2260, 172414), (2305, 169048), (2486, 156740), (3688, 105655), (3740, 104186), (3842, 101420), (4520, 86207), (4610, 84524), (4972, 78370), (5071, 76840), (6215, 62696), (7480, 52093), (7684, 50710), (7837, 49720), (9220, 42262), (9605, 40568), (9944, 39185), (10142, 38420), (12430, 31348), (15368, 25355), (15674, 24860), (18440, 21131), (19210, 20284)]