16813780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{577}}^1$

素因数の和:664

約数の個数: 48

約数和(自身を含む): 37287936

約数和(自身を除く): 20474156

約数列:

[1, 2, 4, 5, 10, 20, 31, 47, 62, 94, 124, 155, 188, 235, 310, 470, 577, 620, 940, 1154, 1457, 2308, 2885, 2914, 5770, 5828, 7285, 11540, 14570, 17887, 27119, 29140, 35774, 54238, 71548, 89435, 108476, 135595, 178870, 271190, 357740, 542380, 840689, 1681378, 3362756, 4203445, 8406890, 16813780]

約数ペア:

[(1, 16813780), (2, 8406890), (4, 4203445), (5, 3362756), (10, 1681378), (20, 840689), (31, 542380), (47, 357740), (62, 271190), (94, 178870), (124, 135595), (155, 108476), (188, 89435), (235, 71548), (310, 54238), (470, 35774), (577, 29140), (620, 27119), (940, 17887), (1154, 14570), (1457, 11540), (2308, 7285), (2885, 5828), (2914, 5770)]