78120868

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{90001}}^1$

素因数の和:90043

約数の個数: 24

約数和(自身を含む): 161283584

約数和(自身を除く): 83162716

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 90001, 180002, 360004, 630007, 1260014, 2520028, 2790031, 5580062, 11160124, 19530217, 39060434, 78120868]

約数ペア:

[(1, 78120868), (2, 39060434), (4, 19530217), (7, 11160124), (14, 5580062), (28, 2790031), (31, 2520028), (62, 1260014), (124, 630007), (217, 360004), (434, 180002), (868, 90001)]