20790621076

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{991}}^1\times {\mathrm{1901}}^1$

素因数の和:3016

約数の個数: 48

約数和(自身を含む): 38037565440

約数和(自身を除く): 17246944364

約数列:

[1, 2, 4, 31, 62, 89, 124, 178, 356, 991, 1901, 1982, 2759, 3802, 3964, 5518, 7604, 11036, 30721, 58931, 61442, 88199, 117862, 122884, 169189, 176398, 235724, 338378, 352796, 676756, 1883891, 2734169, 3767782, 5244859, 5468338, 7535564, 10489718, 10936676, 20979436, 58400621, 116801242, 167666299, 233602484, 335332598, 670665196, 5197655269, 10395310538, 20790621076]

約数ペア:

[(1, 20790621076), (2, 10395310538), (4, 5197655269), (31, 670665196), (62, 335332598), (89, 233602484), (124, 167666299), (178, 116801242), (356, 58400621), (991, 20979436), (1901, 10936676), (1982, 10489718), (2759, 7535564), (3802, 5468338), (3964, 5244859), (5518, 3767782), (7604, 2734169), (11036, 1883891), (30721, 676756), (58931, 352796), (61442, 338378), (88199, 235724), (117862, 176398), (122884, 169189)]