891197420

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{564049}}^1$

素因数の和:564137

約数の個数: 24

約数和(自身を含む): 1895208000

約数和(自身を除く): 1004010580

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 564049, 1128098, 2256196, 2820245, 5640490, 11280980, 44559871, 89119742, 178239484, 222799355, 445598710, 891197420]

約数ペア:

[(1, 891197420), (2, 445598710), (4, 222799355), (5, 178239484), (10, 89119742), (20, 44559871), (79, 11280980), (158, 5640490), (316, 2820245), (395, 2256196), (790, 1128098), (1580, 564049)]