43121620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{443}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 94284288

約数和(自身を除く): 51162668

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 157, 310, 314, 443, 620, 628, 785, 886, 1570, 1772, 2215, 3140, 4430, 4867, 8860, 9734, 13733, 19468, 24335, 27466, 48670, 54932, 68665, 69551, 97340, 137330, 139102, 274660, 278204, 347755, 695510, 1391020, 2156081, 4312162, 8624324, 10780405, 21560810, 43121620]

約数ペア:

[(1, 43121620), (2, 21560810), (4, 10780405), (5, 8624324), (10, 4312162), (20, 2156081), (31, 1391020), (62, 695510), (124, 347755), (155, 278204), (157, 274660), (310, 139102), (314, 137330), (443, 97340), (620, 69551), (628, 68665), (785, 54932), (886, 48670), (1570, 27466), (1772, 24335), (2215, 19468), (3140, 13733), (4430, 9734), (4867, 8860)]