201920020

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{23981}}^1$

素因数の和:24411

約数の個数: 24

約数和(自身を含む): 425056968

約数和(自身を除く): 223136948

約数列:

[1, 2, 4, 5, 10, 20, 421, 842, 1684, 2105, 4210, 8420, 23981, 47962, 95924, 119905, 239810, 479620, 10096001, 20192002, 40384004, 50480005, 100960010, 201920020]

約数ペア:

[(1, 201920020), (2, 100960010), (4, 50480005), (5, 40384004), (10, 20192002), (20, 10096001), (421, 479620), (842, 239810), (1684, 119905), (2105, 95924), (4210, 47962), (8420, 23981)]