42556180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{68639}}^1$

素因数の和:68679

約数の個数: 24

約数和(自身を含む): 92252160

約数和(自身を除く): 49695980

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 68639, 137278, 274556, 343195, 686390, 1372780, 2127809, 4255618, 8511236, 10639045, 21278090, 42556180]

約数ペア:

[(1, 42556180), (2, 21278090), (4, 10639045), (5, 8511236), (10, 4255618), (20, 2127809), (31, 1372780), (62, 686390), (124, 343195), (155, 274556), (310, 137278), (620, 68639)]