20484200

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{9311}}^1$

素因数の和:9338

約数の個数: 48

約数和(自身を含む): 51960960

約数和(自身を除く): 31476760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 200, 220, 275, 440, 550, 1100, 2200, 9311, 18622, 37244, 46555, 74488, 93110, 102421, 186220, 204842, 232775, 372440, 409684, 465550, 512105, 819368, 931100, 1024210, 1862200, 2048420, 2560525, 4096840, 5121050, 10242100, 20484200]

約数ペア:

[(1, 20484200), (2, 10242100), (4, 5121050), (5, 4096840), (8, 2560525), (10, 2048420), (11, 1862200), (20, 1024210), (22, 931100), (25, 819368), (40, 512105), (44, 465550), (50, 409684), (55, 372440), (88, 232775), (100, 204842), (110, 186220), (200, 102421), (220, 93110), (275, 74488), (440, 46555), (550, 37244), (1100, 18622), (2200, 9311)]