71892220

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{7321}}^1$

素因数の和:7821

約数の個数: 24

約数和(自身を含む): 151301808

約数和(自身を除く): 79409588

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 4910, 7321, 9820, 14642, 29284, 36605, 73210, 146420, 3594611, 7189222, 14378444, 17973055, 35946110, 71892220]

約数ペア:

[(1, 71892220), (2, 35946110), (4, 17973055), (5, 14378444), (10, 7189222), (20, 3594611), (491, 146420), (982, 73210), (1964, 36605), (2455, 29284), (4910, 14642), (7321, 9820)]