18505960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{307}}^1$

素因数の和:466

約数の個数: 64

約数和(自身を含む): 45904320

約数和(自身を除く): 27398360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 137, 220, 274, 307, 440, 548, 614, 685, 1096, 1228, 1370, 1507, 1535, 2456, 2740, 3014, 3070, 3377, 5480, 6028, 6140, 6754, 7535, 12056, 12280, 13508, 15070, 16885, 27016, 30140, 33770, 42059, 60280, 67540, 84118, 135080, 168236, 210295, 336472, 420590, 462649, 841180, 925298, 1682360, 1850596, 2313245, 3701192, 4626490, 9252980, 18505960]

約数ペア:

[(1, 18505960), (2, 9252980), (4, 4626490), (5, 3701192), (8, 2313245), (10, 1850596), (11, 1682360), (20, 925298), (22, 841180), (40, 462649), (44, 420590), (55, 336472), (88, 210295), (110, 168236), (137, 135080), (220, 84118), (274, 67540), (307, 60280), (440, 42059), (548, 33770), (614, 30140), (685, 27016), (1096, 16885), (1228, 15070), (1370, 13508), (1507, 12280), (1535, 12056), (2456, 7535), (2740, 6754), (3014, 6140), (3070, 6028), (3377, 5480)]