81738390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{691}}^1\times {\mathrm{3943}}^1$

素因数の和:4644

約数の個数: 32

約数和(自身を含む): 196505856

約数和(自身を除く): 114767466

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 691, 1382, 2073, 3455, 3943, 4146, 6910, 7886, 10365, 11829, 19715, 20730, 23658, 39430, 59145, 118290, 2724613, 5449226, 8173839, 13623065, 16347678, 27246130, 40869195, 81738390]

約数ペア:

[(1, 81738390), (2, 40869195), (3, 27246130), (5, 16347678), (6, 13623065), (10, 8173839), (15, 5449226), (30, 2724613), (691, 118290), (1382, 59145), (2073, 39430), (3455, 23658), (3943, 20730), (4146, 19715), (6910, 11829), (7886, 10365)]