9997100

素因数分解:

$2^2\times 5^2\times {\mathrm{99971}}^1$

素因数の和:99985

約数の個数: 18

約数和(自身を含む): 21693924

約数和(自身を除く): 11696824

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 99971, 199942, 399884, 499855, 999710, 1999420, 2499275, 4998550, 9997100]

約数ペア:

[(1, 9997100), (2, 4998550), (4, 2499275), (5, 1999420), (10, 999710), (20, 499855), (25, 399884), (50, 199942), (100, 99971)]