20297760

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{863}}^1$

素因数の和:895

約数の個数: 144

約数和(自身を含む): 74462976

約数和(自身を除く): 54165216

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 196, 210, 224, 240, 245, 280, 294, 336, 392, 420, 480, 490, 560, 588, 672, 735, 784, 840, 863, 980, 1120, 1176, 1470, 1568, 1680, 1726, 1960, 2352, 2589, 2940, 3360, 3452, 3920, 4315, 4704, 5178, 5880, 6041, 6904, 7840, 8630, 10356, 11760, 12082, 12945, 13808, 17260, 18123, 20712, 23520, 24164, 25890, 27616, 30205, 34520, 36246, 41424, 42287, 48328, 51780, 60410, 69040, 72492, 82848, 84574, 90615, 96656, 103560, 120820, 126861, 138080, 144984, 169148, 181230, 193312, 207120, 211435, 241640, 253722, 289968, 338296, 362460, 414240, 422870, 483280, 507444, 579936, 634305, 676592, 724920, 845740, 966560, 1014888, 1268610, 1353184, 1449840, 1691480, 2029776, 2537220, 2899680, 3382960, 4059552, 5074440, 6765920, 10148880, 20297760]

約数ペア:

[(1, 20297760), (2, 10148880), (3, 6765920), (4, 5074440), (5, 4059552), (6, 3382960), (7, 2899680), (8, 2537220), (10, 2029776), (12, 1691480), (14, 1449840), (15, 1353184), (16, 1268610), (20, 1014888), (21, 966560), (24, 845740), (28, 724920), (30, 676592), (32, 634305), (35, 579936), (40, 507444), (42, 483280), (48, 422870), (49, 414240), (56, 362460), (60, 338296), (70, 289968), (80, 253722), (84, 241640), (96, 211435), (98, 207120), (105, 193312), (112, 181230), (120, 169148), (140, 144984), (147, 138080), (160, 126861), (168, 120820), (196, 103560), (210, 96656), (224, 90615), (240, 84574), (245, 82848), (280, 72492), (294, 69040), (336, 60410), (392, 51780), (420, 48328), (480, 42287), (490, 41424), (560, 36246), (588, 34520), (672, 30205), (735, 27616), (784, 25890), (840, 24164), (863, 23520), (980, 20712), (1120, 18123), (1176, 17260), (1470, 13808), (1568, 12945), (1680, 12082), (1726, 11760), (1960, 10356), (2352, 8630), (2589, 7840), (2940, 6904), (3360, 6041), (3452, 5880), (3920, 5178), (4315, 4704)]