19988350

素因数分解:

$2^1\times 5^2\times {\mathrm{149}}^1\times {\mathrm{2683}}^1$

素因数の和:2844

約数の個数: 24

約数和(自身を含む): 37441800

約数和(自身を除く): 17453450

約数列:

[1, 2, 5, 10, 25, 50, 149, 298, 745, 1490, 2683, 3725, 5366, 7450, 13415, 26830, 67075, 134150, 399767, 799534, 1998835, 3997670, 9994175, 19988350]

約数ペア:

[(1, 19988350), (2, 9994175), (5, 3997670), (10, 1998835), (25, 799534), (50, 399767), (149, 134150), (298, 67075), (745, 26830), (1490, 13415), (2683, 7450), (3725, 5366)]