890608090

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1021}}^1\times {\mathrm{4591}}^1$

素因数の和:5638

約数の個数: 32

約数和(自身を含む): 1689488640

約数和(自身を除く): 798880550

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 1021, 2042, 4591, 5105, 9182, 10210, 19399, 22955, 38798, 45910, 87229, 96995, 174458, 193990, 436145, 872290, 4687411, 9374822, 23437055, 46874110, 89060809, 178121618, 445304045, 890608090]

約数ペア:

[(1, 890608090), (2, 445304045), (5, 178121618), (10, 89060809), (19, 46874110), (38, 23437055), (95, 9374822), (190, 4687411), (1021, 872290), (2042, 436145), (4591, 193990), (5105, 174458), (9182, 96995), (10210, 87229), (19399, 45910), (22955, 38798)]