20205978688

素因数分解:

$2^6\times 7^2\times {\mathrm{953}}^1\times {\mathrm{6761}}^1$

素因数の和:7740

約数の個数: 84

約数和(自身を含む): 46698412572

約数和(自身を除く): 26492433884

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 196, 224, 392, 448, 784, 953, 1568, 1906, 3136, 3812, 6671, 6761, 7624, 13342, 13522, 15248, 26684, 27044, 30496, 46697, 47327, 53368, 54088, 60992, 93394, 94654, 106736, 108176, 186788, 189308, 213472, 216352, 331289, 373576, 378616, 426944, 432704, 662578, 747152, 757232, 1325156, 1494304, 1514464, 2650312, 2988608, 3028928, 5300624, 6443233, 10601248, 12886466, 21202496, 25772932, 45102631, 51545864, 90205262, 103091728, 180410524, 206183456, 315718417, 360821048, 412366912, 631436834, 721642096, 1262873668, 1443284192, 2525747336, 2886568384, 5051494672, 10102989344, 20205978688]

約数ペア:

[(1, 20205978688), (2, 10102989344), (4, 5051494672), (7, 2886568384), (8, 2525747336), (14, 1443284192), (16, 1262873668), (28, 721642096), (32, 631436834), (49, 412366912), (56, 360821048), (64, 315718417), (98, 206183456), (112, 180410524), (196, 103091728), (224, 90205262), (392, 51545864), (448, 45102631), (784, 25772932), (953, 21202496), (1568, 12886466), (1906, 10601248), (3136, 6443233), (3812, 5300624), (6671, 3028928), (6761, 2988608), (7624, 2650312), (13342, 1514464), (13522, 1494304), (15248, 1325156), (26684, 757232), (27044, 747152), (30496, 662578), (46697, 432704), (47327, 426944), (53368, 378616), (54088, 373576), (60992, 331289), (93394, 216352), (94654, 213472), (106736, 189308), (108176, 186788)]