31187910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{379}}^1$

素因数の和:613

約数の個数: 64

約数和(自身を含む): 81204480

約数和(自身を除く): 50016570

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 211, 379, 390, 422, 633, 758, 1055, 1137, 1266, 1895, 2110, 2274, 2743, 3165, 3790, 4927, 5486, 5685, 6330, 8229, 9854, 11370, 13715, 14781, 16458, 24635, 27430, 29562, 41145, 49270, 73905, 79969, 82290, 147810, 159938, 239907, 399845, 479814, 799690, 1039597, 1199535, 2079194, 2399070, 3118791, 5197985, 6237582, 10395970, 15593955, 31187910]

約数ペア:

[(1, 31187910), (2, 15593955), (3, 10395970), (5, 6237582), (6, 5197985), (10, 3118791), (13, 2399070), (15, 2079194), (26, 1199535), (30, 1039597), (39, 799690), (65, 479814), (78, 399845), (130, 239907), (195, 159938), (211, 147810), (379, 82290), (390, 79969), (422, 73905), (633, 49270), (758, 41145), (1055, 29562), (1137, 27430), (1266, 24635), (1895, 16458), (2110, 14781), (2274, 13715), (2743, 11370), (3165, 9854), (3790, 8229), (4927, 6330), (5486, 5685)]