200516840

素因数分解:

$2^3\times 5^1\times {\mathrm{1289}}^1\times {\mathrm{3889}}^1$

素因数の和:5189

約数の個数: 32

約数和(自身を含む): 451629000

約数和(自身を除く): 251112160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1289, 2578, 3889, 5156, 6445, 7778, 10312, 12890, 15556, 19445, 25780, 31112, 38890, 51560, 77780, 155560, 5012921, 10025842, 20051684, 25064605, 40103368, 50129210, 100258420, 200516840]

約数ペア:

[(1, 200516840), (2, 100258420), (4, 50129210), (5, 40103368), (8, 25064605), (10, 20051684), (20, 10025842), (40, 5012921), (1289, 155560), (2578, 77780), (3889, 51560), (5156, 38890), (6445, 31112), (7778, 25780), (10312, 19445), (12890, 15556)]