1640683640

素因数分解:

$2^3\times 5^1\times {\mathrm{41017091}}^1$

素因数の和:41017102

約数の個数: 16

約数和(自身を含む): 3691538280

約数和(自身を除く): 2050854640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41017091, 82034182, 164068364, 205085455, 328136728, 410170910, 820341820, 1640683640]

約数ペア:

[(1, 1640683640), (2, 820341820), (4, 410170910), (5, 328136728), (8, 205085455), (10, 164068364), (20, 82034182), (40, 41017091)]