61331380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{1871}}^1$

素因数の和:2040

約数の個数: 48

約数和(自身を含む): 141523200

約数和(自身を除く): 80191820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 149, 220, 298, 596, 745, 1490, 1639, 1871, 2980, 3278, 3742, 6556, 7484, 8195, 9355, 16390, 18710, 20581, 32780, 37420, 41162, 82324, 102905, 205810, 278779, 411620, 557558, 1115116, 1393895, 2787790, 3066569, 5575580, 6133138, 12266276, 15332845, 30665690, 61331380]

約数ペア:

[(1, 61331380), (2, 30665690), (4, 15332845), (5, 12266276), (10, 6133138), (11, 5575580), (20, 3066569), (22, 2787790), (44, 1393895), (55, 1115116), (110, 557558), (149, 411620), (220, 278779), (298, 205810), (596, 102905), (745, 82324), (1490, 41162), (1639, 37420), (1871, 32780), (2980, 20581), (3278, 18710), (3742, 16390), (6556, 9355), (7484, 8195)]