81997100

素因数分解:

$2^2\times 5^2\times {\mathrm{223}}^1\times {\mathrm{3677}}^1$

素因数の和:3914

約数の個数: 36

約数和(自身を含む): 178780224

約数和(自身を除く): 96783124

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 223, 446, 892, 1115, 2230, 3677, 4460, 5575, 7354, 11150, 14708, 18385, 22300, 36770, 73540, 91925, 183850, 367700, 819971, 1639942, 3279884, 4099855, 8199710, 16399420, 20499275, 40998550, 81997100]

約数ペア:

[(1, 81997100), (2, 40998550), (4, 20499275), (5, 16399420), (10, 8199710), (20, 4099855), (25, 3279884), (50, 1639942), (100, 819971), (223, 367700), (446, 183850), (892, 91925), (1115, 73540), (2230, 36770), (3677, 22300), (4460, 18385), (5575, 14708), (7354, 11150)]