72557980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{10639}}^1$

素因数の和:10690

約数の個数: 48

約数和(自身を含む): 171601920

約数和(自身を除く): 99043940

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 3410, 6820, 10639, 21278, 42556, 53195, 106390, 117029, 212780, 234058, 329809, 468116, 585145, 659618, 1170290, 1319236, 1649045, 2340580, 3298090, 3627899, 6596180, 7255798, 14511596, 18139495, 36278990, 72557980]

約数ペア:

[(1, 72557980), (2, 36278990), (4, 18139495), (5, 14511596), (10, 7255798), (11, 6596180), (20, 3627899), (22, 3298090), (31, 2340580), (44, 1649045), (55, 1319236), (62, 1170290), (110, 659618), (124, 585145), (155, 468116), (220, 329809), (310, 234058), (341, 212780), (620, 117029), (682, 106390), (1364, 53195), (1705, 42556), (3410, 21278), (6820, 10639)]