65594780

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{857}}^1$

素因数の和:998

約数の個数: 48

約数和(自身を含む): 142702560

約数和(自身を除く): 77107780

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 89, 172, 178, 215, 356, 430, 445, 857, 860, 890, 1714, 1780, 3428, 3827, 4285, 7654, 8570, 15308, 17140, 19135, 36851, 38270, 73702, 76273, 76540, 147404, 152546, 184255, 305092, 368510, 381365, 737020, 762730, 1525460, 3279739, 6559478, 13118956, 16398695, 32797390, 65594780]

約数ペア:

[(1, 65594780), (2, 32797390), (4, 16398695), (5, 13118956), (10, 6559478), (20, 3279739), (43, 1525460), (86, 762730), (89, 737020), (172, 381365), (178, 368510), (215, 305092), (356, 184255), (430, 152546), (445, 147404), (857, 76540), (860, 76273), (890, 73702), (1714, 38270), (1780, 36851), (3428, 19135), (3827, 17140), (4285, 15308), (7654, 8570)]