90866890

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{1867}}^1$

素因数の和:2062

約数の個数: 32

約数和(自身を含む): 170002944

約数和(自身を除く): 79136054

約数列:

[1, 2, 5, 10, 31, 62, 155, 157, 310, 314, 785, 1570, 1867, 3734, 4867, 9335, 9734, 18670, 24335, 48670, 57877, 115754, 289385, 293119, 578770, 586238, 1465595, 2931190, 9086689, 18173378, 45433445, 90866890]

約数ペア:

[(1, 90866890), (2, 45433445), (5, 18173378), (10, 9086689), (31, 2931190), (62, 1465595), (155, 586238), (157, 578770), (310, 293119), (314, 289385), (785, 115754), (1570, 57877), (1867, 48670), (3734, 24335), (4867, 18670), (9335, 9734)]