1690990

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1$

素因数の和:74

約数の個数: 64

約数和(自身を含む): 3888000

約数和(自身を除く): 2197010

約数列:

[1, 2, 5, 7, 10, 14, 17, 29, 34, 35, 49, 58, 70, 85, 98, 119, 145, 170, 203, 238, 245, 290, 343, 406, 490, 493, 595, 686, 833, 986, 1015, 1190, 1421, 1666, 1715, 2030, 2465, 2842, 3430, 3451, 4165, 4930, 5831, 6902, 7105, 8330, 9947, 11662, 14210, 17255, 19894, 24157, 29155, 34510, 48314, 49735, 58310, 99470, 120785, 169099, 241570, 338198, 845495, 1690990]

約数ペア:

[(1, 1690990), (2, 845495), (5, 338198), (7, 241570), (10, 169099), (14, 120785), (17, 99470), (29, 58310), (34, 49735), (35, 48314), (49, 34510), (58, 29155), (70, 24157), (85, 19894), (98, 17255), (119, 14210), (145, 11662), (170, 9947), (203, 8330), (238, 7105), (245, 6902), (290, 5831), (343, 4930), (406, 4165), (490, 3451), (493, 3430), (595, 2842), (686, 2465), (833, 2030), (986, 1715), (1015, 1666), (1190, 1421)]