22887640

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1399}}^1$

素因数の和:1819

約数の個数: 32

約数和(自身を含む): 51660000

約数和(自身を除く): 28772360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 1399, 1636, 2045, 2798, 3272, 4090, 5596, 6995, 8180, 11192, 13990, 16360, 27980, 55960, 572191, 1144382, 2288764, 2860955, 4577528, 5721910, 11443820, 22887640]

約数ペア:

[(1, 22887640), (2, 11443820), (4, 5721910), (5, 4577528), (8, 2860955), (10, 2288764), (20, 1144382), (40, 572191), (409, 55960), (818, 27980), (1399, 16360), (1636, 13990), (2045, 11192), (2798, 8180), (3272, 6995), (4090, 5596)]