80787640

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^2\times {\mathrm{379}}^1$

素因数の和:536

約数の個数: 48

約数和(自身を含む): 184782600

約数和(自身を除く): 103994960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 379, 584, 730, 758, 1460, 1516, 1895, 2920, 3032, 3790, 5329, 7580, 10658, 15160, 21316, 26645, 27667, 42632, 53290, 55334, 106580, 110668, 138335, 213160, 221336, 276670, 553340, 1106680, 2019691, 4039382, 8078764, 10098455, 16157528, 20196910, 40393820, 80787640]

約数ペア:

[(1, 80787640), (2, 40393820), (4, 20196910), (5, 16157528), (8, 10098455), (10, 8078764), (20, 4039382), (40, 2019691), (73, 1106680), (146, 553340), (292, 276670), (365, 221336), (379, 213160), (584, 138335), (730, 110668), (758, 106580), (1460, 55334), (1516, 53290), (1895, 42632), (2920, 27667), (3032, 26645), (3790, 21316), (5329, 15160), (7580, 10658)]