20296890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{2069}}^1$

素因数の和:2191

約数の個数: 48

約数和(自身を含む): 53281800

約数和(自身を除く): 32984910

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 109, 218, 327, 545, 654, 981, 1090, 1635, 1962, 2069, 3270, 4138, 4905, 6207, 9810, 10345, 12414, 18621, 20690, 31035, 37242, 62070, 93105, 186210, 225521, 451042, 676563, 1127605, 1353126, 2029689, 2255210, 3382815, 4059378, 6765630, 10148445, 20296890]

約数ペア:

[(1, 20296890), (2, 10148445), (3, 6765630), (5, 4059378), (6, 3382815), (9, 2255210), (10, 2029689), (15, 1353126), (18, 1127605), (30, 676563), (45, 451042), (90, 225521), (109, 186210), (218, 93105), (327, 62070), (545, 37242), (654, 31035), (981, 20690), (1090, 18621), (1635, 12414), (1962, 10345), (2069, 9810), (3270, 6207), (4138, 4905)]