31302920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71143}}^1$

素因数の和:71165

約数の個数: 32

約数和(自身を含む): 76835520

約数和(自身を除く): 45532600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 71143, 142286, 284572, 355715, 569144, 711430, 782573, 1422860, 1565146, 2845720, 3130292, 3912865, 6260584, 7825730, 15651460, 31302920]

約数ペア:

[(1, 31302920), (2, 15651460), (4, 7825730), (5, 6260584), (8, 3912865), (10, 3130292), (11, 2845720), (20, 1565146), (22, 1422860), (40, 782573), (44, 711430), (55, 569144), (88, 355715), (110, 284572), (220, 142286), (440, 71143)]