398250970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{34421}}^1$

素因数の和:34530

約数の個数: 32

約数和(自身を含む): 780690960

約数和(自身を除く): 382439990

約数列:

[1, 2, 5, 10, 13, 26, 65, 89, 130, 178, 445, 890, 1157, 2314, 5785, 11570, 34421, 68842, 172105, 344210, 447473, 894946, 2237365, 3063469, 4474730, 6126938, 15317345, 30634690, 39825097, 79650194, 199125485, 398250970]

約数ペア:

[(1, 398250970), (2, 199125485), (5, 79650194), (10, 39825097), (13, 30634690), (26, 15317345), (65, 6126938), (89, 4474730), (130, 3063469), (178, 2237365), (445, 894946), (890, 447473), (1157, 344210), (2314, 172105), (5785, 68842), (11570, 34421)]