28387340

素因数分解:

$2^2\times 5^1\times {\mathrm{619}}^1\times {\mathrm{2293}}^1$

素因数の和:2921

約数の個数: 24

約数和(自身を含む): 59735760

約数和(自身を除く): 31348420

約数列:

[1, 2, 4, 5, 10, 20, 619, 1238, 2293, 2476, 3095, 4586, 6190, 9172, 11465, 12380, 22930, 45860, 1419367, 2838734, 5677468, 7096835, 14193670, 28387340]

約数ペア:

[(1, 28387340), (2, 14193670), (4, 7096835), (5, 5677468), (10, 2838734), (20, 1419367), (619, 45860), (1238, 22930), (2293, 12380), (2476, 11465), (3095, 9172), (4586, 6190)]