18837720

素因数分解:

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

素因数の和:166

約数の個数: 192

約数和(自身を含む): 68739840

約数和(自身を除く): 49902120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 67, 71, 72, 88, 90, 99, 110, 120, 132, 134, 142, 165, 180, 198, 201, 213, 220, 264, 268, 284, 330, 335, 355, 360, 396, 402, 426, 440, 495, 536, 568, 603, 639, 660, 670, 710, 737, 781, 792, 804, 852, 990, 1005, 1065, 1206, 1278, 1320, 1340, 1420, 1474, 1562, 1608, 1704, 1980, 2010, 2130, 2211, 2343, 2412, 2556, 2680, 2840, 2948, 3015, 3124, 3195, 3685, 3905, 3960, 4020, 4260, 4422, 4686, 4757, 4824, 5112, 5896, 6030, 6248, 6390, 6633, 7029, 7370, 7810, 8040, 8520, 8844, 9372, 9514, 11055, 11715, 12060, 12780, 13266, 14058, 14271, 14740, 15620, 17688, 18744, 19028, 22110, 23430, 23785, 24120, 25560, 26532, 28116, 28542, 29480, 31240, 33165, 35145, 38056, 42813, 44220, 46860, 47570, 52327, 53064, 56232, 57084, 66330, 70290, 71355, 85626, 88440, 93720, 95140, 104654, 114168, 132660, 140580, 142710, 156981, 171252, 190280, 209308, 214065, 261635, 265320, 281160, 285420, 313962, 342504, 418616, 428130, 470943, 523270, 570840, 627924, 784905, 856260, 941886, 1046540, 1255848, 1569810, 1712520, 1883772, 2093080, 2354715, 3139620, 3767544, 4709430, 6279240, 9418860, 18837720]

約数ペア:

[(1, 18837720), (2, 9418860), (3, 6279240), (4, 4709430), (5, 3767544), (6, 3139620), (8, 2354715), (9, 2093080), (10, 1883772), (11, 1712520), (12, 1569810), (15, 1255848), (18, 1046540), (20, 941886), (22, 856260), (24, 784905), (30, 627924), (33, 570840), (36, 523270), (40, 470943), (44, 428130), (45, 418616), (55, 342504), (60, 313962), (66, 285420), (67, 281160), (71, 265320), (72, 261635), (88, 214065), (90, 209308), (99, 190280), (110, 171252), (120, 156981), (132, 142710), (134, 140580), (142, 132660), (165, 114168), (180, 104654), (198, 95140), (201, 93720), (213, 88440), (220, 85626), (264, 71355), (268, 70290), (284, 66330), (330, 57084), (335, 56232), (355, 53064), (360, 52327), (396, 47570), (402, 46860), (426, 44220), (440, 42813), (495, 38056), (536, 35145), (568, 33165), (603, 31240), (639, 29480), (660, 28542), (670, 28116), (710, 26532), (737, 25560), (781, 24120), (792, 23785), (804, 23430), (852, 22110), (990, 19028), (1005, 18744), (1065, 17688), (1206, 15620), (1278, 14740), (1320, 14271), (1340, 14058), (1420, 13266), (1474, 12780), (1562, 12060), (1608, 11715), (1704, 11055), (1980, 9514), (2010, 9372), (2130, 8844), (2211, 8520), (2343, 8040), (2412, 7810), (2556, 7370), (2680, 7029), (2840, 6633), (2948, 6390), (3015, 6248), (3124, 6030), (3195, 5896), (3685, 5112), (3905, 4824), (3960, 4757), (4020, 4686), (4260, 4422)]