20025712

素因数分解:

$2^4\times 7^3\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:159

約数の個数: 80

約数和(自身を含む): 46872000

約数和(自身を除く): 26846288

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 41, 49, 56, 82, 89, 98, 112, 164, 178, 196, 287, 328, 343, 356, 392, 574, 623, 656, 686, 712, 784, 1148, 1246, 1372, 1424, 2009, 2296, 2492, 2744, 3649, 4018, 4361, 4592, 4984, 5488, 7298, 8036, 8722, 9968, 14063, 14596, 16072, 17444, 25543, 28126, 29192, 30527, 32144, 34888, 51086, 56252, 58384, 61054, 69776, 102172, 112504, 122108, 178801, 204344, 225008, 244216, 357602, 408688, 488432, 715204, 1251607, 1430408, 2503214, 2860816, 5006428, 10012856, 20025712]

約数ペア:

[(1, 20025712), (2, 10012856), (4, 5006428), (7, 2860816), (8, 2503214), (14, 1430408), (16, 1251607), (28, 715204), (41, 488432), (49, 408688), (56, 357602), (82, 244216), (89, 225008), (98, 204344), (112, 178801), (164, 122108), (178, 112504), (196, 102172), (287, 69776), (328, 61054), (343, 58384), (356, 56252), (392, 51086), (574, 34888), (623, 32144), (656, 30527), (686, 29192), (712, 28126), (784, 25543), (1148, 17444), (1246, 16072), (1372, 14596), (1424, 14063), (2009, 9968), (2296, 8722), (2492, 8036), (2744, 7298), (3649, 5488), (4018, 4984), (4361, 4592)]