84747980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{2687}}^1$

素因数の和:2798

約数の個数: 48

約数和(自身を含む): 189665280

約数和(自身を除く): 104917300

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 83, 95, 166, 190, 332, 380, 415, 830, 1577, 1660, 2687, 3154, 5374, 6308, 7885, 10748, 13435, 15770, 26870, 31540, 51053, 53740, 102106, 204212, 223021, 255265, 446042, 510530, 892084, 1021060, 1115105, 2230210, 4237399, 4460420, 8474798, 16949596, 21186995, 42373990, 84747980]

約数ペア:

[(1, 84747980), (2, 42373990), (4, 21186995), (5, 16949596), (10, 8474798), (19, 4460420), (20, 4237399), (38, 2230210), (76, 1115105), (83, 1021060), (95, 892084), (166, 510530), (190, 446042), (332, 255265), (380, 223021), (415, 204212), (830, 102106), (1577, 53740), (1660, 51053), (2687, 31540), (3154, 26870), (5374, 15770), (6308, 13435), (7885, 10748)]