28309880

素因数分解:

$2^3\times 5^1\times {\mathrm{707747}}^1$

素因数の和:707758

約数の個数: 16

約数和(自身を含む): 63697320

約数和(自身を除く): 35387440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 707747, 1415494, 2830988, 3538735, 5661976, 7077470, 14154940, 28309880]

約数ペア:

[(1, 28309880), (2, 14154940), (4, 7077470), (5, 5661976), (8, 3538735), (10, 2830988), (20, 1415494), (40, 707747)]