19383867640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1231}}^1\times {\mathrm{20719}}^1$

素因数の和:21980

約数の個数: 64

約数和(自身を含む): 45948672000

約数和(自身を除く): 26564804360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 1231, 2462, 4924, 6155, 9848, 12310, 20719, 23389, 24620, 41438, 46778, 49240, 82876, 93556, 103595, 116945, 165752, 187112, 207190, 233890, 393661, 414380, 467780, 787322, 828760, 935560, 1574644, 1968305, 3149288, 3936610, 7873220, 15746440, 25505089, 51010178, 102020356, 127525445, 204040712, 255050890, 484596691, 510101780, 969193382, 1020203560, 1938386764, 2422983455, 3876773528, 4845966910, 9691933820, 19383867640]

約数ペア:

[(1, 19383867640), (2, 9691933820), (4, 4845966910), (5, 3876773528), (8, 2422983455), (10, 1938386764), (19, 1020203560), (20, 969193382), (38, 510101780), (40, 484596691), (76, 255050890), (95, 204040712), (152, 127525445), (190, 102020356), (380, 51010178), (760, 25505089), (1231, 15746440), (2462, 7873220), (4924, 3936610), (6155, 3149288), (9848, 1968305), (12310, 1574644), (20719, 935560), (23389, 828760), (24620, 787322), (41438, 467780), (46778, 414380), (49240, 393661), (82876, 233890), (93556, 207190), (103595, 187112), (116945, 165752)]