398095540

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{197077}}^1$

素因数の和:197187

約数の個数: 24

約数和(自身を含む): 844282152

約数和(自身を除く): 446186612

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 197077, 394154, 788308, 985385, 1970770, 3941540, 19904777, 39809554, 79619108, 99523885, 199047770, 398095540]

約数ペア:

[(1, 398095540), (2, 199047770), (4, 99523885), (5, 79619108), (10, 39809554), (20, 19904777), (101, 3941540), (202, 1970770), (404, 985385), (505, 788308), (1010, 394154), (2020, 197077)]