31388390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{4019}}^1$

素因数の和:4108

約数の個数: 32

約数和(自身を含む): 62519040

約数和(自身を除く): 31130650

約数列:

[1, 2, 5, 10, 11, 22, 55, 71, 110, 142, 355, 710, 781, 1562, 3905, 4019, 7810, 8038, 20095, 40190, 44209, 88418, 221045, 285349, 442090, 570698, 1426745, 2853490, 3138839, 6277678, 15694195, 31388390]

約数ペア:

[(1, 31388390), (2, 15694195), (5, 6277678), (10, 3138839), (11, 2853490), (22, 1426745), (55, 570698), (71, 442090), (110, 285349), (142, 221045), (355, 88418), (710, 44209), (781, 40190), (1562, 20095), (3905, 8038), (4019, 7810)]