20123089900

素因数分解:

$2^2\times 5^2\times {\mathrm{201230899}}^1$

素因数の和:201230913

約数の個数: 18

約数和(自身を含む): 43667105300

約数和(自身を除く): 23544015400

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 201230899, 402461798, 804923596, 1006154495, 2012308990, 4024617980, 5030772475, 10061544950, 20123089900]

約数ペア:

[(1, 20123089900), (2, 10061544950), (4, 5030772475), (5, 4024617980), (10, 2012308990), (20, 1006154495), (25, 804923596), (50, 402461798), (100, 201230899)]