68721680

素因数分解:

$2^4\times 5^1\times {\mathrm{179}}^1\times {\mathrm{4799}}^1$

素因数の和:4991

約数の個数: 40

約数和(自身を含む): 160704000

約数和(自身を除く): 91982320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 179, 358, 716, 895, 1432, 1790, 2864, 3580, 4799, 7160, 9598, 14320, 19196, 23995, 38392, 47990, 76784, 95980, 191960, 383920, 859021, 1718042, 3436084, 4295105, 6872168, 8590210, 13744336, 17180420, 34360840, 68721680]

約数ペア:

[(1, 68721680), (2, 34360840), (4, 17180420), (5, 13744336), (8, 8590210), (10, 6872168), (16, 4295105), (20, 3436084), (40, 1718042), (80, 859021), (179, 383920), (358, 191960), (716, 95980), (895, 76784), (1432, 47990), (1790, 38392), (2864, 23995), (3580, 19196), (4799, 14320), (7160, 9598)]