250486580

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{419}}^1\times {\mathrm{421}}^1$

素因数の和:920

約数の個数: 48

約数和(自身を含む): 535973760

約数和(自身を除く): 285487180

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 419, 421, 710, 838, 842, 1420, 1676, 1684, 2095, 2105, 4190, 4210, 8380, 8420, 29749, 29891, 59498, 59782, 118996, 119564, 148745, 149455, 176399, 297490, 298910, 352798, 594980, 597820, 705596, 881995, 1763990, 3527980, 12524329, 25048658, 50097316, 62621645, 125243290, 250486580]

約数ペア:

[(1, 250486580), (2, 125243290), (4, 62621645), (5, 50097316), (10, 25048658), (20, 12524329), (71, 3527980), (142, 1763990), (284, 881995), (355, 705596), (419, 597820), (421, 594980), (710, 352798), (838, 298910), (842, 297490), (1420, 176399), (1676, 149455), (1684, 148745), (2095, 119564), (2105, 118996), (4190, 59782), (4210, 59498), (8380, 29891), (8420, 29749)]