20403936

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{349}}^1$

素因数の和:401

約数の個数: 144

約数和(自身を含む): 68796000

約数和(自身を除く): 48392064

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 29, 32, 36, 42, 48, 56, 58, 63, 72, 84, 87, 96, 112, 116, 126, 144, 168, 174, 203, 224, 232, 252, 261, 288, 336, 348, 349, 406, 464, 504, 522, 609, 672, 696, 698, 812, 928, 1008, 1044, 1047, 1218, 1392, 1396, 1624, 1827, 2016, 2088, 2094, 2436, 2443, 2784, 2792, 3141, 3248, 3654, 4176, 4188, 4872, 4886, 5584, 6282, 6496, 7308, 7329, 8352, 8376, 9744, 9772, 10121, 11168, 12564, 14616, 14658, 16752, 19488, 19544, 20242, 21987, 25128, 29232, 29316, 30363, 33504, 39088, 40484, 43974, 50256, 58464, 58632, 60726, 70847, 78176, 80968, 87948, 91089, 100512, 117264, 121452, 141694, 161936, 175896, 182178, 212541, 234528, 242904, 283388, 323872, 351792, 364356, 425082, 485808, 566776, 637623, 703584, 728712, 850164, 971616, 1133552, 1275246, 1457424, 1700328, 2267104, 2550492, 2914848, 3400656, 5100984, 6801312, 10201968, 20403936]

約数ペア:

[(1, 20403936), (2, 10201968), (3, 6801312), (4, 5100984), (6, 3400656), (7, 2914848), (8, 2550492), (9, 2267104), (12, 1700328), (14, 1457424), (16, 1275246), (18, 1133552), (21, 971616), (24, 850164), (28, 728712), (29, 703584), (32, 637623), (36, 566776), (42, 485808), (48, 425082), (56, 364356), (58, 351792), (63, 323872), (72, 283388), (84, 242904), (87, 234528), (96, 212541), (112, 182178), (116, 175896), (126, 161936), (144, 141694), (168, 121452), (174, 117264), (203, 100512), (224, 91089), (232, 87948), (252, 80968), (261, 78176), (288, 70847), (336, 60726), (348, 58632), (349, 58464), (406, 50256), (464, 43974), (504, 40484), (522, 39088), (609, 33504), (672, 30363), (696, 29316), (698, 29232), (812, 25128), (928, 21987), (1008, 20242), (1044, 19544), (1047, 19488), (1218, 16752), (1392, 14658), (1396, 14616), (1624, 12564), (1827, 11168), (2016, 10121), (2088, 9772), (2094, 9744), (2436, 8376), (2443, 8352), (2784, 7329), (2792, 7308), (3141, 6496), (3248, 6282), (3654, 5584), (4176, 4886), (4188, 4872)]