90131770

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{1063}}^1$

素因数の和:1270

約数の個数: 32

約数和(自身を含む): 166239360

約数和(自身を除く): 76107590

約数列:

[1, 2, 5, 10, 61, 122, 139, 278, 305, 610, 695, 1063, 1390, 2126, 5315, 8479, 10630, 16958, 42395, 64843, 84790, 129686, 147757, 295514, 324215, 648430, 738785, 1477570, 9013177, 18026354, 45065885, 90131770]

約数ペア:

[(1, 90131770), (2, 45065885), (5, 18026354), (10, 9013177), (61, 1477570), (122, 738785), (139, 648430), (278, 324215), (305, 295514), (610, 147757), (695, 129686), (1063, 84790), (1390, 64843), (2126, 42395), (5315, 16958), (8479, 10630)]