20512202000

素因数分解:

$2^4\times 5^3\times {\mathrm{97}}^1\times {\mathrm{105733}}^1$

素因数の和:105853

約数の個数: 80

約数和(自身を含む): 50110303152

約数和(自身を除く): 29598101152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 97, 100, 125, 194, 200, 250, 388, 400, 485, 500, 776, 970, 1000, 1552, 1940, 2000, 2425, 3880, 4850, 7760, 9700, 12125, 19400, 24250, 38800, 48500, 97000, 105733, 194000, 211466, 422932, 528665, 845864, 1057330, 1691728, 2114660, 2643325, 4229320, 5286650, 8458640, 10256101, 10573300, 13216625, 20512202, 21146600, 26433250, 41024404, 42293200, 51280505, 52866500, 82048808, 102561010, 105733000, 164097616, 205122020, 211466000, 256402525, 410244040, 512805050, 820488080, 1025610100, 1282012625, 2051220200, 2564025250, 4102440400, 5128050500, 10256101000, 20512202000]

約数ペア:

[(1, 20512202000), (2, 10256101000), (4, 5128050500), (5, 4102440400), (8, 2564025250), (10, 2051220200), (16, 1282012625), (20, 1025610100), (25, 820488080), (40, 512805050), (50, 410244040), (80, 256402525), (97, 211466000), (100, 205122020), (125, 164097616), (194, 105733000), (200, 102561010), (250, 82048808), (388, 52866500), (400, 51280505), (485, 42293200), (500, 41024404), (776, 26433250), (970, 21146600), (1000, 20512202), (1552, 13216625), (1940, 10573300), (2000, 10256101), (2425, 8458640), (3880, 5286650), (4850, 4229320), (7760, 2643325), (9700, 2114660), (12125, 1691728), (19400, 1057330), (24250, 845864), (38800, 528665), (48500, 422932), (97000, 211466), (105733, 194000)]