157440940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{253937}}^1$

素因数の和:253977

約数の個数: 24

約数和(自身を含む): 341292672

約数和(自身を除く): 183851732

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 253937, 507874, 1015748, 1269685, 2539370, 5078740, 7872047, 15744094, 31488188, 39360235, 78720470, 157440940]

約数ペア:

[(1, 157440940), (2, 78720470), (4, 39360235), (5, 31488188), (10, 15744094), (20, 7872047), (31, 5078740), (62, 2539370), (124, 1269685), (155, 1015748), (310, 507874), (620, 253937)]