66887920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2621}}^1$

素因数の和:2674

約数の個数: 80

約数和(自身を含む): 175569120

約数和(自身を除く): 108681200

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 40, 44, 55, 58, 80, 88, 110, 116, 145, 176, 220, 232, 290, 319, 440, 464, 580, 638, 880, 1160, 1276, 1595, 2320, 2552, 2621, 3190, 5104, 5242, 6380, 10484, 12760, 13105, 20968, 25520, 26210, 28831, 41936, 52420, 57662, 76009, 104840, 115324, 144155, 152018, 209680, 230648, 288310, 304036, 380045, 461296, 576620, 608072, 760090, 836099, 1153240, 1216144, 1520180, 1672198, 2306480, 3040360, 3344396, 4180495, 6080720, 6688792, 8360990, 13377584, 16721980, 33443960, 66887920]

約数ペア:

[(1, 66887920), (2, 33443960), (4, 16721980), (5, 13377584), (8, 8360990), (10, 6688792), (11, 6080720), (16, 4180495), (20, 3344396), (22, 3040360), (29, 2306480), (40, 1672198), (44, 1520180), (55, 1216144), (58, 1153240), (80, 836099), (88, 760090), (110, 608072), (116, 576620), (145, 461296), (176, 380045), (220, 304036), (232, 288310), (290, 230648), (319, 209680), (440, 152018), (464, 144155), (580, 115324), (638, 104840), (880, 76009), (1160, 57662), (1276, 52420), (1595, 41936), (2320, 28831), (2552, 26210), (2621, 25520), (3190, 20968), (5104, 13105), (5242, 12760), (6380, 10484)]