749980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{487}}^1$

素因数の和:514

約数の個数: 48

約数和(自身を含む): 1967616

約数和(自身を除く): 1217636

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 487, 770, 974, 1540, 1948, 2435, 3409, 4870, 5357, 6818, 9740, 10714, 13636, 17045, 21428, 26785, 34090, 37499, 53570, 68180, 74998, 107140, 149996, 187495, 374990, 749980]

約数ペア:

[(1, 749980), (2, 374990), (4, 187495), (5, 149996), (7, 107140), (10, 74998), (11, 68180), (14, 53570), (20, 37499), (22, 34090), (28, 26785), (35, 21428), (44, 17045), (55, 13636), (70, 10714), (77, 9740), (110, 6818), (140, 5357), (154, 4870), (220, 3409), (308, 2435), (385, 1948), (487, 1540), (770, 974)]