28789360

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8369}}^1$

素因数の和:8425

約数の個数: 40

約数和(自身を含む): 68500080

約数和(自身を除く): 39710720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 8369, 16738, 33476, 41845, 66952, 83690, 133904, 167380, 334760, 359867, 669520, 719734, 1439468, 1799335, 2878936, 3598670, 5757872, 7197340, 14394680, 28789360]

約数ペア:

[(1, 28789360), (2, 14394680), (4, 7197340), (5, 5757872), (8, 3598670), (10, 2878936), (16, 1799335), (20, 1439468), (40, 719734), (43, 669520), (80, 359867), (86, 334760), (172, 167380), (215, 133904), (344, 83690), (430, 66952), (688, 41845), (860, 33476), (1720, 16738), (3440, 8369)]