388545760

素因数分解:

$2^5\times 5^1\times {\mathrm{109}}^1\times {\mathrm{22279}}^1$

素因数の和:22403

約数の個数: 48

約数和(自身を含む): 926402400

約数和(自身を除く): 537856640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 109, 160, 218, 436, 545, 872, 1090, 1744, 2180, 3488, 4360, 8720, 17440, 22279, 44558, 89116, 111395, 178232, 222790, 356464, 445580, 712928, 891160, 1782320, 2428411, 3564640, 4856822, 9713644, 12142055, 19427288, 24284110, 38854576, 48568220, 77709152, 97136440, 194272880, 388545760]

約数ペア:

[(1, 388545760), (2, 194272880), (4, 97136440), (5, 77709152), (8, 48568220), (10, 38854576), (16, 24284110), (20, 19427288), (32, 12142055), (40, 9713644), (80, 4856822), (109, 3564640), (160, 2428411), (218, 1782320), (436, 891160), (545, 712928), (872, 445580), (1090, 356464), (1744, 222790), (2180, 178232), (3488, 111395), (4360, 89116), (8720, 44558), (17440, 22279)]