31450640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{30241}}^1$

素因数の和:30267

約数の個数: 40

約数和(自身を含む): 78750168

約数和(自身を除く): 47299528

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 30241, 60482, 120964, 151205, 241928, 302410, 393133, 483856, 604820, 786266, 1209640, 1572532, 1965665, 2419280, 3145064, 3931330, 6290128, 7862660, 15725320, 31450640]

約数ペア:

[(1, 31450640), (2, 15725320), (4, 7862660), (5, 6290128), (8, 3931330), (10, 3145064), (13, 2419280), (16, 1965665), (20, 1572532), (26, 1209640), (40, 786266), (52, 604820), (65, 483856), (80, 393133), (104, 302410), (130, 241928), (208, 151205), (260, 120964), (520, 60482), (1040, 30241)]