20203680

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{859}}^1$

素因数の和:891

約数の個数: 144

約数和(自身を含む): 74118240

約数和(自身を除く): 53914560

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, 859, 980, 1120, 1176, 1470, 1568, 1680, 1718, 1960, 2352, 2577, 2940, 3360, 3436, 3920, 4295, 4704, 5154, 5880, 6013, 6872, 7840, 8590, 10308, 11760, 12026, 12885, 13744, 17180, 18039, 20616, 23520, 24052, 25770, 27488, 30065, 34360, 36078, 41232, 42091, 48104, 51540, 60130, 68720, 72156, 82464, 84182, 90195, 96208, 103080, 120260, 126273, 137440, 144312, 168364, 180390, 192416, 206160, 210455, 240520, 252546, 288624, 336728, 360780, 412320, 420910, 481040, 505092, 577248, 631365, 673456, 721560, 841820, 962080, 1010184, 1262730, 1346912, 1443120, 1683640, 2020368, 2525460, 2886240, 3367280, 4040736, 5050920, 6734560, 10101840, 20203680]

約数ペア:

[(1, 20203680), (2, 10101840), (3, 6734560), (4, 5050920), (5, 4040736), (6, 3367280), (7, 2886240), (8, 2525460), (10, 2020368), (12, 1683640), (14, 1443120), (15, 1346912), (16, 1262730), (20, 1010184), (21, 962080), (24, 841820), (28, 721560), (30, 673456), (32, 631365), (35, 577248), (40, 505092), (42, 481040), (48, 420910), (49, 412320), (56, 360780), (60, 336728), (70, 288624), (80, 252546), (84, 240520), (96, 210455), (98, 206160), (105, 192416), (112, 180390), (120, 168364), (140, 144312), (147, 137440), (160, 126273), (168, 120260), (196, 103080), (210, 96208), (224, 90195), (240, 84182), (245, 82464), (280, 72156), (294, 68720), (336, 60130), (392, 51540), (420, 48104), (480, 42091), (490, 41232), (560, 36078), (588, 34360), (672, 30065), (735, 27488), (784, 25770), (840, 24052), (859, 23520), (980, 20616), (1120, 18039), (1176, 17180), (1470, 13744), (1568, 12885), (1680, 12026), (1718, 11760), (1960, 10308), (2352, 8590), (2577, 7840), (2940, 6872), (3360, 6013), (3436, 5880), (3920, 5154), (4295, 4704)]