81820856

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{786739}}^1$

素因数の和:786758

約数の個数: 16

約数和(自身を含む): 165215400

約数和(自身を除く): 83394544

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 786739, 1573478, 3146956, 6293912, 10227607, 20455214, 40910428, 81820856]

約数ペア:

[(1, 81820856), (2, 40910428), (4, 20455214), (8, 10227607), (13, 6293912), (26, 3146956), (52, 1573478), (104, 786739)]