20822560

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{11831}}^1$

素因数の和:11857

約数の個数: 48

約数和(自身を含む): 53669952

約数和(自身を除く): 32847392

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 11831, 23662, 47324, 59155, 94648, 118310, 130141, 189296, 236620, 260282, 378592, 473240, 520564, 650705, 946480, 1041128, 1301410, 1892960, 2082256, 2602820, 4164512, 5205640, 10411280, 20822560]

約数ペア:

[(1, 20822560), (2, 10411280), (4, 5205640), (5, 4164512), (8, 2602820), (10, 2082256), (11, 1892960), (16, 1301410), (20, 1041128), (22, 946480), (32, 650705), (40, 520564), (44, 473240), (55, 378592), (80, 260282), (88, 236620), (110, 189296), (160, 130141), (176, 118310), (220, 94648), (352, 59155), (440, 47324), (880, 23662), (1760, 11831)]