389693240

素因数分解:

$2^3\times 5^1\times {\mathrm{9742331}}^1$

素因数の和:9742342

約数の個数: 16

約数和(自身を含む): 876809880

約数和(自身を除く): 487116640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9742331, 19484662, 38969324, 48711655, 77938648, 97423310, 194846620, 389693240]

約数ペア:

[(1, 389693240), (2, 194846620), (4, 97423310), (5, 77938648), (8, 48711655), (10, 38969324), (20, 19484662), (40, 9742331)]