21167459080

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1481}}^1\times {\mathrm{4523}}^1$

素因数の和:6094

約数の個数: 64

約数和(自身を含む): 48272889600

約数和(自身を除く): 27105430520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1481, 1580, 2962, 3160, 4523, 5924, 7405, 9046, 11848, 14810, 18092, 22615, 29620, 36184, 45230, 59240, 90460, 116999, 180920, 233998, 357317, 467996, 584995, 714634, 935992, 1169990, 1429268, 1786585, 2339980, 2858536, 3573170, 4679960, 6698563, 7146340, 13397126, 14292680, 26794252, 33492815, 53588504, 66985630, 133971260, 267942520, 529186477, 1058372954, 2116745908, 2645932385, 4233491816, 5291864770, 10583729540, 21167459080]

約数ペア:

[(1, 21167459080), (2, 10583729540), (4, 5291864770), (5, 4233491816), (8, 2645932385), (10, 2116745908), (20, 1058372954), (40, 529186477), (79, 267942520), (158, 133971260), (316, 66985630), (395, 53588504), (632, 33492815), (790, 26794252), (1481, 14292680), (1580, 13397126), (2962, 7146340), (3160, 6698563), (4523, 4679960), (5924, 3573170), (7405, 2858536), (9046, 2339980), (11848, 1786585), (14810, 1429268), (18092, 1169990), (22615, 935992), (29620, 714634), (36184, 584995), (45230, 467996), (59240, 357317), (90460, 233998), (116999, 180920)]