399451364

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{4003}}^1$

素因数の和:4140

約数の個数: 48

約数和(自身を含む): 800479680

約数和(自身を除く): 401028316

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 101, 202, 247, 404, 494, 988, 1313, 1919, 2626, 3838, 4003, 5252, 7676, 8006, 16012, 24947, 49894, 52039, 76057, 99788, 104078, 152114, 208156, 304228, 404303, 808606, 988741, 1617212, 1977482, 3954964, 5255939, 7681757, 10511878, 15363514, 21023756, 30727028, 99862841, 199725682, 399451364]

約数ペア:

[(1, 399451364), (2, 199725682), (4, 99862841), (13, 30727028), (19, 21023756), (26, 15363514), (38, 10511878), (52, 7681757), (76, 5255939), (101, 3954964), (202, 1977482), (247, 1617212), (404, 988741), (494, 808606), (988, 404303), (1313, 304228), (1919, 208156), (2626, 152114), (3838, 104078), (4003, 99788), (5252, 76057), (7676, 52039), (8006, 49894), (16012, 24947)]