28688452

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{83}}^1$

素因数の和:157

約数の個数: 72

約数和(自身を含む): 60653376

約数和(自身を除く): 31964924

約数列:

[1, 2, 4, 13, 17, 23, 26, 34, 46, 52, 68, 83, 92, 166, 221, 289, 299, 332, 391, 442, 578, 598, 782, 884, 1079, 1156, 1196, 1411, 1564, 1909, 2158, 2822, 3757, 3818, 4316, 5083, 5644, 6647, 7514, 7636, 10166, 13294, 15028, 18343, 20332, 23987, 24817, 26588, 32453, 36686, 47974, 49634, 64906, 73372, 86411, 95948, 99268, 129812, 172822, 311831, 345644, 421889, 551701, 623662, 843778, 1103402, 1247324, 1687556, 2206804, 7172113, 14344226, 28688452]

約数ペア:

[(1, 28688452), (2, 14344226), (4, 7172113), (13, 2206804), (17, 1687556), (23, 1247324), (26, 1103402), (34, 843778), (46, 623662), (52, 551701), (68, 421889), (83, 345644), (92, 311831), (166, 172822), (221, 129812), (289, 99268), (299, 95948), (332, 86411), (391, 73372), (442, 64906), (578, 49634), (598, 47974), (782, 36686), (884, 32453), (1079, 26588), (1156, 24817), (1196, 23987), (1411, 20332), (1564, 18343), (1909, 15028), (2158, 13294), (2822, 10166), (3757, 7636), (3818, 7514), (4316, 6647), (5083, 5644)]