20681640

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{283}}^1$

素因数の和:336

約数の個数: 192

約数和(自身を含む): 79747200

約数和(自身を除く): 59065560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 29, 30, 35, 36, 40, 42, 45, 56, 58, 60, 63, 70, 72, 84, 87, 90, 105, 116, 120, 126, 140, 145, 168, 174, 180, 203, 210, 232, 252, 261, 280, 283, 290, 315, 348, 360, 406, 420, 435, 504, 522, 566, 580, 609, 630, 696, 812, 840, 849, 870, 1015, 1044, 1132, 1160, 1218, 1260, 1305, 1415, 1624, 1698, 1740, 1827, 1981, 2030, 2088, 2264, 2436, 2520, 2547, 2610, 2830, 3045, 3396, 3480, 3654, 3962, 4060, 4245, 4872, 5094, 5220, 5660, 5943, 6090, 6792, 7308, 7924, 8120, 8207, 8490, 9135, 9905, 10188, 10440, 11320, 11886, 12180, 12735, 14616, 15848, 16414, 16980, 17829, 18270, 19810, 20376, 23772, 24360, 24621, 25470, 29715, 32828, 33960, 35658, 36540, 39620, 41035, 47544, 49242, 50940, 57449, 59430, 65656, 71316, 73080, 73863, 79240, 82070, 89145, 98484, 101880, 114898, 118860, 123105, 142632, 147726, 164140, 172347, 178290, 196968, 229796, 237720, 246210, 287245, 295452, 328280, 344694, 356580, 369315, 459592, 492420, 517041, 574490, 590904, 689388, 713160, 738630, 861735, 984840, 1034082, 1148980, 1378776, 1477260, 1723470, 2068164, 2297960, 2585205, 2954520, 3446940, 4136328, 5170410, 6893880, 10340820, 20681640]

約数ペア:

[(1, 20681640), (2, 10340820), (3, 6893880), (4, 5170410), (5, 4136328), (6, 3446940), (7, 2954520), (8, 2585205), (9, 2297960), (10, 2068164), (12, 1723470), (14, 1477260), (15, 1378776), (18, 1148980), (20, 1034082), (21, 984840), (24, 861735), (28, 738630), (29, 713160), (30, 689388), (35, 590904), (36, 574490), (40, 517041), (42, 492420), (45, 459592), (56, 369315), (58, 356580), (60, 344694), (63, 328280), (70, 295452), (72, 287245), (84, 246210), (87, 237720), (90, 229796), (105, 196968), (116, 178290), (120, 172347), (126, 164140), (140, 147726), (145, 142632), (168, 123105), (174, 118860), (180, 114898), (203, 101880), (210, 98484), (232, 89145), (252, 82070), (261, 79240), (280, 73863), (283, 73080), (290, 71316), (315, 65656), (348, 59430), (360, 57449), (406, 50940), (420, 49242), (435, 47544), (504, 41035), (522, 39620), (566, 36540), (580, 35658), (609, 33960), (630, 32828), (696, 29715), (812, 25470), (840, 24621), (849, 24360), (870, 23772), (1015, 20376), (1044, 19810), (1132, 18270), (1160, 17829), (1218, 16980), (1260, 16414), (1305, 15848), (1415, 14616), (1624, 12735), (1698, 12180), (1740, 11886), (1827, 11320), (1981, 10440), (2030, 10188), (2088, 9905), (2264, 9135), (2436, 8490), (2520, 8207), (2547, 8120), (2610, 7924), (2830, 7308), (3045, 6792), (3396, 6090), (3480, 5943), (3654, 5660), (3962, 5220), (4060, 5094), (4245, 4872)]