31072730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{479}}^1\times {\mathrm{499}}^1$

素因数の和:998

約数の個数: 32

約数和(自身を含む): 60480000

約数和(自身を除く): 29407270

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 479, 499, 958, 998, 2395, 2495, 4790, 4990, 6227, 6487, 12454, 12974, 31135, 32435, 62270, 64870, 239021, 478042, 1195105, 2390210, 3107273, 6214546, 15536365, 31072730]

約数ペア:

[(1, 31072730), (2, 15536365), (5, 6214546), (10, 3107273), (13, 2390210), (26, 1195105), (65, 478042), (130, 239021), (479, 64870), (499, 62270), (958, 32435), (998, 31135), (2395, 12974), (2495, 12454), (4790, 6487), (4990, 6227)]