80821059280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{5977889}}^1$

素因数の和:5977928

約数の個数: 60

約数和(自身を含む): 203475419820

約数和(自身を除く): 122654360540

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 338, 520, 676, 845, 1040, 1352, 1690, 2704, 3380, 6760, 13520, 5977889, 11955778, 23911556, 29889445, 47823112, 59778890, 77712557, 95646224, 119557780, 155425114, 239115560, 310850228, 388562785, 478231120, 621700456, 777125570, 1010263241, 1243400912, 1554251140, 2020526482, 3108502280, 4041052964, 5051316205, 6217004560, 8082105928, 10102632410, 16164211856, 20205264820, 40410529640, 80821059280]

約数ペア:

[(1, 80821059280), (2, 40410529640), (4, 20205264820), (5, 16164211856), (8, 10102632410), (10, 8082105928), (13, 6217004560), (16, 5051316205), (20, 4041052964), (26, 3108502280), (40, 2020526482), (52, 1554251140), (65, 1243400912), (80, 1010263241), (104, 777125570), (130, 621700456), (169, 478231120), (208, 388562785), (260, 310850228), (338, 239115560), (520, 155425114), (676, 119557780), (845, 95646224), (1040, 77712557), (1352, 59778890), (1690, 47823112), (2704, 29889445), (3380, 23911556), (6760, 11955778), (13520, 5977889)]