2008490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2$

素因数の和:99

約数の個数: 48

約数和(自身を含む): 4289760

約数和(自身を除く): 2281270

約数列:

[1, 2, 5, 10, 11, 19, 22, 31, 38, 55, 62, 95, 110, 155, 190, 209, 310, 341, 418, 589, 682, 961, 1045, 1178, 1705, 1922, 2090, 2945, 3410, 4805, 5890, 6479, 9610, 10571, 12958, 18259, 21142, 32395, 36518, 52855, 64790, 91295, 105710, 182590, 200849, 401698, 1004245, 2008490]

約数ペア:

[(1, 2008490), (2, 1004245), (5, 401698), (10, 200849), (11, 182590), (19, 105710), (22, 91295), (31, 64790), (38, 52855), (55, 36518), (62, 32395), (95, 21142), (110, 18259), (155, 12958), (190, 10571), (209, 9610), (310, 6479), (341, 5890), (418, 4805), (589, 3410), (682, 2945), (961, 2090), (1045, 1922), (1178, 1705)]