1818183820

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{900091}}^1$

素因数の和:900201

約数の個数: 24

約数和(自身を含む): 3855994128

約数和(自身を除く): 2037810308

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 900091, 1800182, 3600364, 4500455, 9000910, 18001820, 90909191, 181818382, 363636764, 454545955, 909091910, 1818183820]

約数ペア:

[(1, 1818183820), (2, 909091910), (4, 454545955), (5, 363636764), (10, 181818382), (20, 90909191), (101, 18001820), (202, 9000910), (404, 4500455), (505, 3600364), (1010, 1800182), (2020, 900091)]