72499340

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{8863}}^1$

素因数の和:9281

約数の個数: 24

約数和(自身を含む): 152638080

約数和(自身を除く): 80138740

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 4090, 8180, 8863, 17726, 35452, 44315, 88630, 177260, 3624967, 7249934, 14499868, 18124835, 36249670, 72499340]

約数ペア:

[(1, 72499340), (2, 36249670), (4, 18124835), (5, 14499868), (10, 7249934), (20, 3624967), (409, 177260), (818, 88630), (1636, 44315), (2045, 35452), (4090, 17726), (8180, 8863)]