1780702990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{852011}}^1$

素因数の和:852048

約数の個数: 32

約数和(自身を含む): 3680691840

約数和(自身を除く): 1899988850

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 852011, 1704022, 4260055, 8520110, 9372121, 16188209, 18744242, 32376418, 46860605, 80941045, 93721210, 161882090, 178070299, 356140598, 890351495, 1780702990]

約数ペア:

[(1, 1780702990), (2, 890351495), (5, 356140598), (10, 178070299), (11, 161882090), (19, 93721210), (22, 80941045), (38, 46860605), (55, 32376418), (95, 18744242), (110, 16188209), (190, 9372121), (209, 8520110), (418, 4260055), (1045, 1704022), (2090, 852011)]