31690490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{769}}^1$

素因数の和:1106

約数の個数: 32

約数和(自身を含む): 61704720

約数和(自身を除く): 30014230

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 317, 634, 769, 1538, 1585, 3170, 3845, 4121, 7690, 8242, 9997, 19994, 20605, 41210, 49985, 99970, 243773, 487546, 1218865, 2437730, 3169049, 6338098, 15845245, 31690490]

約数ペア:

[(1, 31690490), (2, 15845245), (5, 6338098), (10, 3169049), (13, 2437730), (26, 1218865), (65, 487546), (130, 243773), (317, 99970), (634, 49985), (769, 41210), (1538, 20605), (1585, 19994), (3170, 9997), (3845, 8242), (4121, 7690)]