77500580

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1\times {\mathrm{271}}^1$

素因数の和:540

約数の個数: 48

約数和(自身を含む): 166333440

約数和(自身を除く): 88832860

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 181, 271, 316, 362, 395, 542, 724, 790, 905, 1084, 1355, 1580, 1810, 2710, 3620, 5420, 14299, 21409, 28598, 42818, 49051, 57196, 71495, 85636, 98102, 107045, 142990, 196204, 214090, 245255, 285980, 428180, 490510, 981020, 3875029, 7750058, 15500116, 19375145, 38750290, 77500580]

約数ペア:

[(1, 77500580), (2, 38750290), (4, 19375145), (5, 15500116), (10, 7750058), (20, 3875029), (79, 981020), (158, 490510), (181, 428180), (271, 285980), (316, 245255), (362, 214090), (395, 196204), (542, 142990), (724, 107045), (790, 98102), (905, 85636), (1084, 71495), (1355, 57196), (1580, 49051), (1810, 42818), (2710, 28598), (3620, 21409), (5420, 14299)]