31221580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{227}}^1$

素因数の和:295

約数の個数: 72

約数和(自身を含む): 74137392

約数和(自身を除く): 42915812

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 227, 230, 260, 299, 454, 460, 529, 598, 908, 1058, 1135, 1196, 1495, 2116, 2270, 2645, 2951, 2990, 4540, 5221, 5290, 5902, 5980, 6877, 10442, 10580, 11804, 13754, 14755, 20884, 26105, 27508, 29510, 34385, 52210, 59020, 67873, 68770, 104420, 120083, 135746, 137540, 240166, 271492, 339365, 480332, 600415, 678730, 1200830, 1357460, 1561079, 2401660, 3122158, 6244316, 7805395, 15610790, 31221580]

約数ペア:

[(1, 31221580), (2, 15610790), (4, 7805395), (5, 6244316), (10, 3122158), (13, 2401660), (20, 1561079), (23, 1357460), (26, 1200830), (46, 678730), (52, 600415), (65, 480332), (92, 339365), (115, 271492), (130, 240166), (227, 137540), (230, 135746), (260, 120083), (299, 104420), (454, 68770), (460, 67873), (529, 59020), (598, 52210), (908, 34385), (1058, 29510), (1135, 27508), (1196, 26105), (1495, 20884), (2116, 14755), (2270, 13754), (2645, 11804), (2951, 10580), (2990, 10442), (4540, 6877), (5221, 5980), (5290, 5902)]