80912920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{307}}^1\times {\mathrm{599}}^1$

素因数の和:928

約数の個数: 64

約数和(自身を含む): 199584000

約数和(自身を除く): 118671080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 307, 440, 599, 614, 1198, 1228, 1535, 2396, 2456, 2995, 3070, 3377, 4792, 5990, 6140, 6589, 6754, 11980, 12280, 13178, 13508, 16885, 23960, 26356, 27016, 32945, 33770, 52712, 65890, 67540, 131780, 135080, 183893, 263560, 367786, 735572, 919465, 1471144, 1838930, 2022823, 3677860, 4045646, 7355720, 8091292, 10114115, 16182584, 20228230, 40456460, 80912920]

約数ペア:

[(1, 80912920), (2, 40456460), (4, 20228230), (5, 16182584), (8, 10114115), (10, 8091292), (11, 7355720), (20, 4045646), (22, 3677860), (40, 2022823), (44, 1838930), (55, 1471144), (88, 919465), (110, 735572), (220, 367786), (307, 263560), (440, 183893), (599, 135080), (614, 131780), (1198, 67540), (1228, 65890), (1535, 52712), (2396, 33770), (2456, 32945), (2995, 27016), (3070, 26356), (3377, 23960), (4792, 16885), (5990, 13508), (6140, 13178), (6589, 12280), (6754, 11980)]