19892960

素因数分解:

$2^5\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1231}}^1$

素因数の和:1347

約数の個数: 48

約数和(自身を含む): 47500992

約数和(自身を除く): 27608032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 101, 160, 202, 404, 505, 808, 1010, 1231, 1616, 2020, 2462, 3232, 4040, 4924, 6155, 8080, 9848, 12310, 16160, 19696, 24620, 39392, 49240, 98480, 124331, 196960, 248662, 497324, 621655, 994648, 1243310, 1989296, 2486620, 3978592, 4973240, 9946480, 19892960]

約数ペア:

[(1, 19892960), (2, 9946480), (4, 4973240), (5, 3978592), (8, 2486620), (10, 1989296), (16, 1243310), (20, 994648), (32, 621655), (40, 497324), (80, 248662), (101, 196960), (160, 124331), (202, 98480), (404, 49240), (505, 39392), (808, 24620), (1010, 19696), (1231, 16160), (1616, 12310), (2020, 9848), (2462, 8080), (3232, 6155), (4040, 4924)]