82581520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:189

約数の個数: 160

約数和(自身を含む): 233127936

約数和(自身を除く): 150546416

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 67, 70, 71, 80, 112, 124, 134, 140, 142, 155, 217, 248, 268, 280, 284, 310, 335, 355, 434, 469, 496, 497, 536, 560, 568, 620, 670, 710, 868, 938, 994, 1072, 1085, 1136, 1240, 1340, 1420, 1736, 1876, 1988, 2077, 2170, 2201, 2345, 2480, 2485, 2680, 2840, 3472, 3752, 3976, 4154, 4340, 4402, 4690, 4757, 4970, 5360, 5680, 7504, 7952, 8308, 8680, 8804, 9380, 9514, 9940, 10385, 11005, 14539, 15407, 16616, 17360, 17608, 18760, 19028, 19880, 20770, 22010, 23785, 29078, 30814, 33232, 33299, 35216, 37520, 38056, 39760, 41540, 44020, 47570, 58156, 61628, 66598, 72695, 76112, 77035, 83080, 88040, 95140, 116312, 123256, 133196, 145390, 147467, 154070, 166160, 166495, 176080, 190280, 232624, 246512, 266392, 290780, 294934, 308140, 332990, 380560, 532784, 581560, 589868, 616280, 665980, 737335, 1032269, 1163120, 1179736, 1232560, 1331960, 1474670, 2064538, 2359472, 2663920, 2949340, 4129076, 5161345, 5898680, 8258152, 10322690, 11797360, 16516304, 20645380, 41290760, 82581520]

約数ペア:

[(1, 82581520), (2, 41290760), (4, 20645380), (5, 16516304), (7, 11797360), (8, 10322690), (10, 8258152), (14, 5898680), (16, 5161345), (20, 4129076), (28, 2949340), (31, 2663920), (35, 2359472), (40, 2064538), (56, 1474670), (62, 1331960), (67, 1232560), (70, 1179736), (71, 1163120), (80, 1032269), (112, 737335), (124, 665980), (134, 616280), (140, 589868), (142, 581560), (155, 532784), (217, 380560), (248, 332990), (268, 308140), (280, 294934), (284, 290780), (310, 266392), (335, 246512), (355, 232624), (434, 190280), (469, 176080), (496, 166495), (497, 166160), (536, 154070), (560, 147467), (568, 145390), (620, 133196), (670, 123256), (710, 116312), (868, 95140), (938, 88040), (994, 83080), (1072, 77035), (1085, 76112), (1136, 72695), (1240, 66598), (1340, 61628), (1420, 58156), (1736, 47570), (1876, 44020), (1988, 41540), (2077, 39760), (2170, 38056), (2201, 37520), (2345, 35216), (2480, 33299), (2485, 33232), (2680, 30814), (2840, 29078), (3472, 23785), (3752, 22010), (3976, 20770), (4154, 19880), (4340, 19028), (4402, 18760), (4690, 17608), (4757, 17360), (4970, 16616), (5360, 15407), (5680, 14539), (7504, 11005), (7952, 10385), (8308, 9940), (8680, 9514), (8804, 9380)]