4000840

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{3449}}^1$

素因数の和:3489

約数の個数: 32

約数和(自身を含む): 9315000

約数和(自身を除く): 5314160

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 3449, 6898, 13796, 17245, 27592, 34490, 68980, 100021, 137960, 200042, 400084, 500105, 800168, 1000210, 2000420, 4000840]

約数ペア:

[(1, 4000840), (2, 2000420), (4, 1000210), (5, 800168), (8, 500105), (10, 400084), (20, 200042), (29, 137960), (40, 100021), (58, 68980), (116, 34490), (145, 27592), (232, 17245), (290, 13796), (580, 6898), (1160, 3449)]