17809640

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6271}}^1$

素因数の和:6353

約数の個数: 32

約数和(自身を含む): 40642560

約数和(自身を除く): 22832920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 6271, 12542, 25084, 31355, 50168, 62710, 125420, 250840, 445241, 890482, 1780964, 2226205, 3561928, 4452410, 8904820, 17809640]

約数ペア:

[(1, 17809640), (2, 8904820), (4, 4452410), (5, 3561928), (8, 2226205), (10, 1780964), (20, 890482), (40, 445241), (71, 250840), (142, 125420), (284, 62710), (355, 50168), (568, 31355), (710, 25084), (1420, 12542), (2840, 6271)]