28256580

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:167

約数の個数: 192

約数和(自身を含む): 98703360

約数和(自身を除く): 70446780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 44, 45, 54, 55, 60, 66, 67, 71, 90, 99, 108, 110, 132, 134, 135, 142, 165, 180, 198, 201, 213, 220, 268, 270, 284, 297, 330, 335, 355, 396, 402, 426, 495, 540, 594, 603, 639, 660, 670, 710, 737, 781, 804, 852, 990, 1005, 1065, 1188, 1206, 1278, 1340, 1420, 1474, 1485, 1562, 1809, 1917, 1980, 2010, 2130, 2211, 2343, 2412, 2556, 2948, 2970, 3015, 3124, 3195, 3618, 3685, 3834, 3905, 4020, 4260, 4422, 4686, 4757, 5940, 6030, 6390, 6633, 7029, 7236, 7370, 7668, 7810, 8844, 9045, 9372, 9514, 9585, 11055, 11715, 12060, 12780, 13266, 14058, 14271, 14740, 15620, 18090, 19028, 19170, 19899, 21087, 22110, 23430, 23785, 26532, 28116, 28542, 33165, 35145, 36180, 38340, 39798, 42174, 42813, 44220, 46860, 47570, 52327, 57084, 66330, 70290, 71355, 79596, 84348, 85626, 95140, 99495, 104654, 105435, 128439, 132660, 140580, 142710, 156981, 171252, 198990, 209308, 210870, 214065, 256878, 261635, 285420, 313962, 397980, 421740, 428130, 470943, 513756, 523270, 627924, 642195, 784905, 856260, 941886, 1046540, 1284390, 1412829, 1569810, 1883772, 2354715, 2568780, 2825658, 3139620, 4709430, 5651316, 7064145, 9418860, 14128290, 28256580]

約数ペア:

[(1, 28256580), (2, 14128290), (3, 9418860), (4, 7064145), (5, 5651316), (6, 4709430), (9, 3139620), (10, 2825658), (11, 2568780), (12, 2354715), (15, 1883772), (18, 1569810), (20, 1412829), (22, 1284390), (27, 1046540), (30, 941886), (33, 856260), (36, 784905), (44, 642195), (45, 627924), (54, 523270), (55, 513756), (60, 470943), (66, 428130), (67, 421740), (71, 397980), (90, 313962), (99, 285420), (108, 261635), (110, 256878), (132, 214065), (134, 210870), (135, 209308), (142, 198990), (165, 171252), (180, 156981), (198, 142710), (201, 140580), (213, 132660), (220, 128439), (268, 105435), (270, 104654), (284, 99495), (297, 95140), (330, 85626), (335, 84348), (355, 79596), (396, 71355), (402, 70290), (426, 66330), (495, 57084), (540, 52327), (594, 47570), (603, 46860), (639, 44220), (660, 42813), (670, 42174), (710, 39798), (737, 38340), (781, 36180), (804, 35145), (852, 33165), (990, 28542), (1005, 28116), (1065, 26532), (1188, 23785), (1206, 23430), (1278, 22110), (1340, 21087), (1420, 19899), (1474, 19170), (1485, 19028), (1562, 18090), (1809, 15620), (1917, 14740), (1980, 14271), (2010, 14058), (2130, 13266), (2211, 12780), (2343, 12060), (2412, 11715), (2556, 11055), (2948, 9585), (2970, 9514), (3015, 9372), (3124, 9045), (3195, 8844), (3618, 7810), (3685, 7668), (3834, 7370), (3905, 7236), (4020, 7029), (4260, 6633), (4422, 6390), (4686, 6030), (4757, 5940)]