18002240

素因数分解:

$2^6\times 5^1\times {\mathrm{101}}^1\times {\mathrm{557}}^1$

素因数の和:675

約数の個数: 56

約数和(自身を含む): 43369992

約数和(自身を除く): 25367752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 101, 160, 202, 320, 404, 505, 557, 808, 1010, 1114, 1616, 2020, 2228, 2785, 3232, 4040, 4456, 5570, 6464, 8080, 8912, 11140, 16160, 17824, 22280, 32320, 35648, 44560, 56257, 89120, 112514, 178240, 225028, 281285, 450056, 562570, 900112, 1125140, 1800224, 2250280, 3600448, 4500560, 9001120, 18002240]

約数ペア:

[(1, 18002240), (2, 9001120), (4, 4500560), (5, 3600448), (8, 2250280), (10, 1800224), (16, 1125140), (20, 900112), (32, 562570), (40, 450056), (64, 281285), (80, 225028), (101, 178240), (160, 112514), (202, 89120), (320, 56257), (404, 44560), (505, 35648), (557, 32320), (808, 22280), (1010, 17824), (1114, 16160), (1616, 11140), (2020, 8912), (2228, 8080), (2785, 6464), (3232, 5570), (4040, 4456)]