20628900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{22921}}^1$

素因数の和:22941

約数の個数: 54

約数和(自身を含む): 64662962

約数和(自身を除く): 44034062

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 150, 180, 225, 300, 450, 900, 22921, 45842, 68763, 91684, 114605, 137526, 206289, 229210, 275052, 343815, 412578, 458420, 573025, 687630, 825156, 1031445, 1146050, 1375260, 1719075, 2062890, 2292100, 3438150, 4125780, 5157225, 6876300, 10314450, 20628900]

約数ペア:

[(1, 20628900), (2, 10314450), (3, 6876300), (4, 5157225), (5, 4125780), (6, 3438150), (9, 2292100), (10, 2062890), (12, 1719075), (15, 1375260), (18, 1146050), (20, 1031445), (25, 825156), (30, 687630), (36, 573025), (45, 458420), (50, 412578), (60, 343815), (75, 275052), (90, 229210), (100, 206289), (150, 137526), (180, 114605), (225, 91684), (300, 68763), (450, 45842), (900, 22921)]