84969040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{81701}}^1$

素因数の和:81727

約数の個数: 40

約数和(自身を含む): 212752008

約数和(自身を除く): 127782968

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 81701, 163402, 326804, 408505, 653608, 817010, 1062113, 1307216, 1634020, 2124226, 3268040, 4248452, 5310565, 6536080, 8496904, 10621130, 16993808, 21242260, 42484520, 84969040]

約数ペア:

[(1, 84969040), (2, 42484520), (4, 21242260), (5, 16993808), (8, 10621130), (10, 8496904), (13, 6536080), (16, 5310565), (20, 4248452), (26, 3268040), (40, 2124226), (52, 1634020), (65, 1307216), (80, 1062113), (104, 817010), (130, 653608), (208, 408505), (260, 326804), (520, 163402), (1040, 81701)]