491569109005

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{2389}}^1\times {\mathrm{16069}}^1$

素因数の和:18673

約数の個数: 32

約数和(自身を含む): 638790213600

約数和(自身を除く): 147221104595

約数列:

[1, 5, 13, 65, 197, 985, 2389, 2561, 11945, 12805, 16069, 31057, 80345, 155285, 208897, 470633, 1044485, 2353165, 3165593, 6118229, 15827965, 30591145, 38388841, 41152709, 191944205, 205763545, 499054933, 2495274665, 7562601677, 37813008385, 98313821801, 491569109005]

約数ペア:

[(1, 491569109005), (5, 98313821801), (13, 37813008385), (65, 7562601677), (197, 2495274665), (985, 499054933), (2389, 205763545), (2561, 191944205), (11945, 41152709), (12805, 38388841), (16069, 30591145), (31057, 15827965), (80345, 6118229), (155285, 3165593), (208897, 2353165), (470633, 1044485)]