87995690

素因数分解:

$2^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{22621}}^1$

素因数の和:23017

約数の個数: 16

約数和(自身を含む): 158806440

約数和(自身を除く): 70810750

約数列:

[1, 2, 5, 10, 389, 778, 1945, 3890, 22621, 45242, 113105, 226210, 8799569, 17599138, 43997845, 87995690]

約数ペア:

[(1, 87995690), (2, 43997845), (5, 17599138), (10, 8799569), (389, 226210), (778, 113105), (1945, 45242), (3890, 22621)]