81393650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{125221}}^1$

素因数の和:125246

約数の個数: 24

約数和(自身を含む): 163039044

約数和(自身を除く): 81645394

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 125221, 250442, 626105, 1252210, 1627873, 3130525, 3255746, 6261050, 8139365, 16278730, 40696825, 81393650]

約数ペア:

[(1, 81393650), (2, 40696825), (5, 16278730), (10, 8139365), (13, 6261050), (25, 3255746), (26, 3130525), (50, 1627873), (65, 1252210), (130, 626105), (325, 250442), (650, 125221)]