18782868340

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{3931}}^1\times {\mathrm{5827}}^1$

素因数の和:9808

約数の個数: 48

約数和(自身を含む): 40423287744

約数和(自身を除く): 21640419404

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 3931, 5827, 7862, 11654, 15724, 19655, 23308, 29135, 39310, 58270, 78620, 116540, 161171, 238907, 322342, 477814, 644684, 805855, 955628, 1194535, 1611710, 2389070, 3223420, 4778140, 22905937, 45811874, 91623748, 114529685, 229059370, 458118740, 939143417, 1878286834, 3756573668, 4695717085, 9391434170, 18782868340]

約数ペア:

[(1, 18782868340), (2, 9391434170), (4, 4695717085), (5, 3756573668), (10, 1878286834), (20, 939143417), (41, 458118740), (82, 229059370), (164, 114529685), (205, 91623748), (410, 45811874), (820, 22905937), (3931, 4778140), (5827, 3223420), (7862, 2389070), (11654, 1611710), (15724, 1194535), (19655, 955628), (23308, 805855), (29135, 644684), (39310, 477814), (58270, 322342), (78620, 238907), (116540, 161171)]