19085990

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{3541}}^1$

素因数の和:3573

約数の個数: 48

約数和(自身を含む): 43609104

約数和(自身を除く): 24523114

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 77, 98, 110, 154, 245, 385, 490, 539, 770, 1078, 2695, 3541, 5390, 7082, 17705, 24787, 35410, 38951, 49574, 77902, 123935, 173509, 194755, 247870, 272657, 347018, 389510, 545314, 867545, 1363285, 1735090, 1908599, 2726570, 3817198, 9542995, 19085990]

約数ペア:

[(1, 19085990), (2, 9542995), (5, 3817198), (7, 2726570), (10, 1908599), (11, 1735090), (14, 1363285), (22, 867545), (35, 545314), (49, 389510), (55, 347018), (70, 272657), (77, 247870), (98, 194755), (110, 173509), (154, 123935), (245, 77902), (385, 49574), (490, 38951), (539, 35410), (770, 24787), (1078, 17705), (2695, 7082), (3541, 5390)]