87871970

素因数分解:

$2^1\times 5^1\times {\mathrm{991}}^1\times {\mathrm{8867}}^1$

素因数の和:9865

約数の個数: 16

約数和(自身を含む): 158347008

約数和(自身を除く): 70475038

約数列:

[1, 2, 5, 10, 991, 1982, 4955, 8867, 9910, 17734, 44335, 88670, 8787197, 17574394, 43935985, 87871970]

約数ペア:

[(1, 87871970), (2, 43935985), (5, 17574394), (10, 8787197), (991, 88670), (1982, 44335), (4955, 17734), (8867, 9910)]