81299060

素因数分解:

$2^2\times 5^1\times {\mathrm{743}}^1\times {\mathrm{5471}}^1$

素因数の和:6223

約数の個数: 24

約数和(自身を含む): 170989056

約数和(自身を除く): 89689996

約数列:

[1, 2, 4, 5, 10, 20, 743, 1486, 2972, 3715, 5471, 7430, 10942, 14860, 21884, 27355, 54710, 109420, 4064953, 8129906, 16259812, 20324765, 40649530, 81299060]

約数ペア:

[(1, 81299060), (2, 40649530), (4, 20324765), (5, 16259812), (10, 8129906), (20, 4064953), (743, 109420), (1486, 54710), (2972, 27355), (3715, 21884), (5471, 14860), (7430, 10942)]