81506230

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{383}}^1\times {\mathrm{1637}}^1$

素因数の和:2040

約数の個数: 32

約数和(自身を含む): 158505984

約数和(自身を除く): 76999754

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 383, 766, 1637, 1915, 3274, 3830, 4979, 8185, 9958, 16370, 21281, 24895, 42562, 49790, 106405, 212810, 626971, 1253942, 3134855, 6269710, 8150623, 16301246, 40753115, 81506230]

約数ペア:

[(1, 81506230), (2, 40753115), (5, 16301246), (10, 8150623), (13, 6269710), (26, 3134855), (65, 1253942), (130, 626971), (383, 212810), (766, 106405), (1637, 49790), (1915, 42562), (3274, 24895), (3830, 21281), (4979, 16370), (8185, 9958)]