2018092520

素因数分解:

$2^3\times 5^1\times {\mathrm{1601}}^1\times {\mathrm{31513}}^1$

素因数の和:33125

約数の個数: 32

約数和(自身を含む): 4543688520

約数和(自身を除く): 2525596000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1601, 3202, 6404, 8005, 12808, 16010, 31513, 32020, 63026, 64040, 126052, 157565, 252104, 315130, 630260, 1260520, 50452313, 100904626, 201809252, 252261565, 403618504, 504523130, 1009046260, 2018092520]

約数ペア:

[(1, 2018092520), (2, 1009046260), (4, 504523130), (5, 403618504), (8, 252261565), (10, 201809252), (20, 100904626), (40, 50452313), (1601, 1260520), (3202, 630260), (6404, 315130), (8005, 252104), (12808, 157565), (16010, 126052), (31513, 64040), (32020, 63026)]