72339280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{69557}}^1$

素因数の和:69583

約数の個数: 40

約数和(自身を含む): 181129032

約数和(自身を除く): 108789752

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 69557, 139114, 278228, 347785, 556456, 695570, 904241, 1112912, 1391140, 1808482, 2782280, 3616964, 4521205, 5564560, 7233928, 9042410, 14467856, 18084820, 36169640, 72339280]

約数ペア:

[(1, 72339280), (2, 36169640), (4, 18084820), (5, 14467856), (8, 9042410), (10, 7233928), (13, 5564560), (16, 4521205), (20, 3616964), (26, 2782280), (40, 1808482), (52, 1391140), (65, 1112912), (80, 904241), (104, 695570), (130, 556456), (208, 347785), (260, 278228), (520, 139114), (1040, 69557)]