393485240

素因数分解:

$2^3\times 5^1\times {\mathrm{9837131}}^1$

素因数の和:9837142

約数の個数: 16

約数和(自身を含む): 885341880

約数和(自身を除く): 491856640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9837131, 19674262, 39348524, 49185655, 78697048, 98371310, 196742620, 393485240]

約数ペア:

[(1, 393485240), (2, 196742620), (4, 98371310), (5, 78697048), (8, 49185655), (10, 39348524), (20, 19674262), (40, 9837131)]