81404128

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{2477}}^1$

素因数の和:2579

約数の個数: 48

約数和(自身を含む): 174847680

約数和(自身を除く): 93443552

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 79, 104, 158, 208, 316, 416, 632, 1027, 1264, 2054, 2477, 2528, 4108, 4954, 8216, 9908, 16432, 19816, 32201, 32864, 39632, 64402, 79264, 128804, 195683, 257608, 391366, 515216, 782732, 1030432, 1565464, 2543879, 3130928, 5087758, 6261856, 10175516, 20351032, 40702064, 81404128]

約数ペア:

[(1, 81404128), (2, 40702064), (4, 20351032), (8, 10175516), (13, 6261856), (16, 5087758), (26, 3130928), (32, 2543879), (52, 1565464), (79, 1030432), (104, 782732), (158, 515216), (208, 391366), (316, 257608), (416, 195683), (632, 128804), (1027, 79264), (1264, 64402), (2054, 39632), (2477, 32864), (2528, 32201), (4108, 19816), (4954, 16432), (8216, 9908)]