20098680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{337}}^1$

素因数の和:429

約数の個数: 128

約数和(自身を含む): 70087680

約数和(自身を除く): 49989000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 71, 84, 105, 120, 140, 142, 168, 210, 213, 280, 284, 337, 355, 420, 426, 497, 568, 674, 710, 840, 852, 994, 1011, 1065, 1348, 1420, 1491, 1685, 1704, 1988, 2022, 2130, 2359, 2485, 2696, 2840, 2982, 3370, 3976, 4044, 4260, 4718, 4970, 5055, 5964, 6740, 7077, 7455, 8088, 8520, 9436, 9940, 10110, 11795, 11928, 13480, 14154, 14910, 18872, 19880, 20220, 23590, 23927, 28308, 29820, 35385, 40440, 47180, 47854, 56616, 59640, 70770, 71781, 94360, 95708, 119635, 141540, 143562, 167489, 191416, 239270, 283080, 287124, 334978, 358905, 478540, 502467, 574248, 669956, 717810, 837445, 957080, 1004934, 1339912, 1435620, 1674890, 2009868, 2512335, 2871240, 3349780, 4019736, 5024670, 6699560, 10049340, 20098680]

約数ペア:

[(1, 20098680), (2, 10049340), (3, 6699560), (4, 5024670), (5, 4019736), (6, 3349780), (7, 2871240), (8, 2512335), (10, 2009868), (12, 1674890), (14, 1435620), (15, 1339912), (20, 1004934), (21, 957080), (24, 837445), (28, 717810), (30, 669956), (35, 574248), (40, 502467), (42, 478540), (56, 358905), (60, 334978), (70, 287124), (71, 283080), (84, 239270), (105, 191416), (120, 167489), (140, 143562), (142, 141540), (168, 119635), (210, 95708), (213, 94360), (280, 71781), (284, 70770), (337, 59640), (355, 56616), (420, 47854), (426, 47180), (497, 40440), (568, 35385), (674, 29820), (710, 28308), (840, 23927), (852, 23590), (994, 20220), (1011, 19880), (1065, 18872), (1348, 14910), (1420, 14154), (1491, 13480), (1685, 11928), (1704, 11795), (1988, 10110), (2022, 9940), (2130, 9436), (2359, 8520), (2485, 8088), (2696, 7455), (2840, 7077), (2982, 6740), (3370, 5964), (3976, 5055), (4044, 4970), (4260, 4718)]