20158476490

素因数分解:

$2^1\times 5^1\times {\mathrm{947}}^1\times {\mathrm{2128667}}^1$

素因数の和:2129621

約数の個数: 16

約数和(自身を含む): 36323590752

約数和(自身を除く): 16165114262

約数列:

[1, 2, 5, 10, 947, 1894, 4735, 9470, 2128667, 4257334, 10643335, 21286670, 2015847649, 4031695298, 10079238245, 20158476490]

約数ペア:

[(1, 20158476490), (2, 10079238245), (5, 4031695298), (10, 2015847649), (947, 21286670), (1894, 10643335), (4735, 4257334), (9470, 2128667)]