25180840

素因数分解:

$2^3\times 5^1\times {\mathrm{229}}^1\times {\mathrm{2749}}^1$

素因数の和:2989

約数の個数: 32

約数和(自身を含む): 56925000

約数和(自身を除く): 31744160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 229, 458, 916, 1145, 1832, 2290, 2749, 4580, 5498, 9160, 10996, 13745, 21992, 27490, 54980, 109960, 629521, 1259042, 2518084, 3147605, 5036168, 6295210, 12590420, 25180840]

約数ペア:

[(1, 25180840), (2, 12590420), (4, 6295210), (5, 5036168), (8, 3147605), (10, 2518084), (20, 1259042), (40, 629521), (229, 109960), (458, 54980), (916, 27490), (1145, 21992), (1832, 13745), (2290, 10996), (2749, 9160), (4580, 5498)]