40390418

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1\times {\mathrm{1319}}^1$

素因数の和:1633

約数の個数: 16

約数和(自身を含む): 61871040

約数和(自身を除く): 21480622

約数列:

[1, 2, 61, 122, 251, 502, 1319, 2638, 15311, 30622, 80459, 160918, 331069, 662138, 20195209, 40390418]

約数ペア:

[(1, 40390418), (2, 20195209), (61, 662138), (122, 331069), (251, 160918), (502, 80459), (1319, 30622), (2638, 15311)]