72501820

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{9319}}^1$

素因数の和:9717

約数の個数: 24

約数和(自身を含む): 152661600

約数和(自身を除く): 80159780

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 3890, 7780, 9319, 18638, 37276, 46595, 93190, 186380, 3625091, 7250182, 14500364, 18125455, 36250910, 72501820]

約数ペア:

[(1, 72501820), (2, 36250910), (4, 18125455), (5, 14500364), (10, 7250182), (20, 3625091), (389, 186380), (778, 93190), (1556, 46595), (1945, 37276), (3890, 18638), (7780, 9319)]