215517416

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{2777}}^1$

素因数の和:2981

約数の個数: 32

約数和(自身を含む): 412533000

約数和(自身を除く): 197015584

約数列:

[1, 2, 4, 8, 89, 109, 178, 218, 356, 436, 712, 872, 2777, 5554, 9701, 11108, 19402, 22216, 38804, 77608, 247153, 302693, 494306, 605386, 988612, 1210772, 1977224, 2421544, 26939677, 53879354, 107758708, 215517416]

約数ペア:

[(1, 215517416), (2, 107758708), (4, 53879354), (8, 26939677), (89, 2421544), (109, 1977224), (178, 1210772), (218, 988612), (356, 605386), (436, 494306), (712, 302693), (872, 247153), (2777, 77608), (5554, 38804), (9701, 22216), (11108, 19402)]