89075180

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{421}}^1$

素因数の和:650

約数の個数: 48

約数和(自身を含む): 191419200

約数和(自身を除く): 102344020

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 149, 284, 298, 355, 421, 596, 710, 745, 842, 1420, 1490, 1684, 2105, 2980, 4210, 8420, 10579, 21158, 29891, 42316, 52895, 59782, 62729, 105790, 119564, 125458, 149455, 211580, 250916, 298910, 313645, 597820, 627290, 1254580, 4453759, 8907518, 17815036, 22268795, 44537590, 89075180]

約数ペア:

[(1, 89075180), (2, 44537590), (4, 22268795), (5, 17815036), (10, 8907518), (20, 4453759), (71, 1254580), (142, 627290), (149, 597820), (284, 313645), (298, 298910), (355, 250916), (421, 211580), (596, 149455), (710, 125458), (745, 119564), (842, 105790), (1420, 62729), (1490, 59782), (1684, 52895), (2105, 42316), (2980, 29891), (4210, 21158), (8420, 10579)]