124540420

素因数分解:

$2^2\times 5^1\times {\mathrm{499}}^1\times {\mathrm{12479}}^1$

素因数の和:12987

約数の個数: 24

約数和(自身を含む): 262080000

約数和(自身を除く): 137539580

約数列:

[1, 2, 4, 5, 10, 20, 499, 998, 1996, 2495, 4990, 9980, 12479, 24958, 49916, 62395, 124790, 249580, 6227021, 12454042, 24908084, 31135105, 62270210, 124540420]

約数ペア:

[(1, 124540420), (2, 62270210), (4, 31135105), (5, 24908084), (10, 12454042), (20, 6227021), (499, 249580), (998, 124790), (1996, 62395), (2495, 49916), (4990, 24958), (9980, 12479)]