20904909984

素因数分解:

$2^5\times 3^2\times 7^2\times {\mathrm{1481357}}^1$

素因数の和:1481387

約数の個数: 108

約数和(自身を含む): 69154235514

約数和(自身を除く): 48249325530

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 49, 56, 63, 72, 84, 96, 98, 112, 126, 144, 147, 168, 196, 224, 252, 288, 294, 336, 392, 441, 504, 588, 672, 784, 882, 1008, 1176, 1568, 1764, 2016, 2352, 3528, 4704, 7056, 14112, 1481357, 2962714, 4444071, 5925428, 8888142, 10369499, 11850856, 13332213, 17776284, 20738998, 23701712, 26664426, 31108497, 35552568, 41477996, 47403424, 53328852, 62216994, 71105136, 72586493, 82955992, 93325491, 106657704, 124433988, 142210272, 145172986, 165911984, 186650982, 213315408, 217759479, 248867976, 290345972, 331823968, 373301964, 426630816, 435518958, 497735952, 580691944, 653278437, 746603928, 871037916, 995471904, 1161383888, 1306556874, 1493207856, 1742075832, 2322767776, 2613113748, 2986415712, 3484151664, 5226227496, 6968303328, 10452454992, 20904909984]

約数ペア:

[(1, 20904909984), (2, 10452454992), (3, 6968303328), (4, 5226227496), (6, 3484151664), (7, 2986415712), (8, 2613113748), (9, 2322767776), (12, 1742075832), (14, 1493207856), (16, 1306556874), (18, 1161383888), (21, 995471904), (24, 871037916), (28, 746603928), (32, 653278437), (36, 580691944), (42, 497735952), (48, 435518958), (49, 426630816), (56, 373301964), (63, 331823968), (72, 290345972), (84, 248867976), (96, 217759479), (98, 213315408), (112, 186650982), (126, 165911984), (144, 145172986), (147, 142210272), (168, 124433988), (196, 106657704), (224, 93325491), (252, 82955992), (288, 72586493), (294, 71105136), (336, 62216994), (392, 53328852), (441, 47403424), (504, 41477996), (588, 35552568), (672, 31108497), (784, 26664426), (882, 23701712), (1008, 20738998), (1176, 17776284), (1568, 13332213), (1764, 11850856), (2016, 10369499), (2352, 8888142), (3528, 5925428), (4704, 4444071), (7056, 2962714), (14112, 1481357)]