11615120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1$

素因数の和:288

約数の個数: 80

約数和(自身を含む): 30051648

約数和(自身を除く): 18436528

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 67, 80, 88, 110, 134, 176, 197, 220, 268, 335, 394, 440, 536, 670, 737, 788, 880, 985, 1072, 1340, 1474, 1576, 1970, 2167, 2680, 2948, 3152, 3685, 3940, 4334, 5360, 5896, 7370, 7880, 8668, 10835, 11792, 13199, 14740, 15760, 17336, 21670, 26398, 29480, 34672, 43340, 52796, 58960, 65995, 86680, 105592, 131990, 145189, 173360, 211184, 263980, 290378, 527960, 580756, 725945, 1055920, 1161512, 1451890, 2323024, 2903780, 5807560, 11615120]

約数ペア:

[(1, 11615120), (2, 5807560), (4, 2903780), (5, 2323024), (8, 1451890), (10, 1161512), (11, 1055920), (16, 725945), (20, 580756), (22, 527960), (40, 290378), (44, 263980), (55, 211184), (67, 173360), (80, 145189), (88, 131990), (110, 105592), (134, 86680), (176, 65995), (197, 58960), (220, 52796), (268, 43340), (335, 34672), (394, 29480), (440, 26398), (536, 21670), (670, 17336), (737, 15760), (788, 14740), (880, 13199), (985, 11792), (1072, 10835), (1340, 8668), (1474, 7880), (1576, 7370), (1970, 5896), (2167, 5360), (2680, 4334), (2948, 3940), (3152, 3685)]