20879320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{6779}}^1$

素因数の和:6808

約数の個数: 64

約数和(自身を含む): 58579200

約数和(自身を除く): 37699880

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 6779, 13558, 27116, 33895, 47453, 54232, 67790, 74569, 94906, 135580, 149138, 189812, 237265, 271160, 298276, 372845, 379624, 474530, 521983, 596552, 745690, 949060, 1043966, 1491380, 1898120, 2087932, 2609915, 2982760, 4175864, 5219830, 10439660, 20879320]

約数ペア:

[(1, 20879320), (2, 10439660), (4, 5219830), (5, 4175864), (7, 2982760), (8, 2609915), (10, 2087932), (11, 1898120), (14, 1491380), (20, 1043966), (22, 949060), (28, 745690), (35, 596552), (40, 521983), (44, 474530), (55, 379624), (56, 372845), (70, 298276), (77, 271160), (88, 237265), (110, 189812), (140, 149138), (154, 135580), (220, 94906), (280, 74569), (308, 67790), (385, 54232), (440, 47453), (616, 33895), (770, 27116), (1540, 13558), (3080, 6779)]