18111320

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4483}}^1$

素因数の和:4595

約数の個数: 32

約数和(自身を含む): 41163120

約数和(自身を除く): 23051800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 4483, 8966, 17932, 22415, 35864, 44830, 89660, 179320, 452783, 905566, 1811132, 2263915, 3622264, 4527830, 9055660, 18111320]

約数ペア:

[(1, 18111320), (2, 9055660), (4, 4527830), (5, 3622264), (8, 2263915), (10, 1811132), (20, 905566), (40, 452783), (101, 179320), (202, 89660), (404, 44830), (505, 35864), (808, 22415), (1010, 17932), (2020, 8966), (4040, 4483)]