72440720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{313}}^1$

素因数の和:600

約数の個数: 80

約数和(自身を含む): 185023872

約数和(自身を除く): 112583152

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 263, 313, 440, 526, 626, 880, 1052, 1252, 1315, 1565, 2104, 2504, 2630, 2893, 3130, 3443, 4208, 5008, 5260, 5786, 6260, 6886, 10520, 11572, 12520, 13772, 14465, 17215, 21040, 23144, 25040, 27544, 28930, 34430, 46288, 55088, 57860, 68860, 82319, 115720, 137720, 164638, 231440, 275440, 329276, 411595, 658552, 823190, 905509, 1317104, 1646380, 1811018, 3292760, 3622036, 4527545, 6585520, 7244072, 9055090, 14488144, 18110180, 36220360, 72440720]

約数ペア:

[(1, 72440720), (2, 36220360), (4, 18110180), (5, 14488144), (8, 9055090), (10, 7244072), (11, 6585520), (16, 4527545), (20, 3622036), (22, 3292760), (40, 1811018), (44, 1646380), (55, 1317104), (80, 905509), (88, 823190), (110, 658552), (176, 411595), (220, 329276), (263, 275440), (313, 231440), (440, 164638), (526, 137720), (626, 115720), (880, 82319), (1052, 68860), (1252, 57860), (1315, 55088), (1565, 46288), (2104, 34430), (2504, 28930), (2630, 27544), (2893, 25040), (3130, 23144), (3443, 21040), (4208, 17215), (5008, 14465), (5260, 13772), (5786, 12520), (6260, 11572), (6886, 10520)]