16831580

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{1999}}^1$

素因数の和:2429

約数の個数: 24

約数和(自身を含む): 35448000

約数和(自身を除く): 18616420

約数列:

[1, 2, 4, 5, 10, 20, 421, 842, 1684, 1999, 2105, 3998, 4210, 7996, 8420, 9995, 19990, 39980, 841579, 1683158, 3366316, 4207895, 8415790, 16831580]

約数ペア:

[(1, 16831580), (2, 8415790), (4, 4207895), (5, 3366316), (10, 1683158), (20, 841579), (421, 39980), (842, 19990), (1684, 9995), (1999, 8420), (2105, 7996), (3998, 4210)]