12804556280

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1963889}}^1$

素因数の和:1964063

約数の個数: 32

約数和(自身を含む): 28987016400

約数和(自身を除く): 16182460120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 1963889, 3927778, 7855556, 9819445, 15711112, 19638890, 39277780, 78555560, 320113907, 640227814, 1280455628, 1600569535, 2560911256, 3201139070, 6402278140, 12804556280]

約数ペア:

[(1, 12804556280), (2, 6402278140), (4, 3201139070), (5, 2560911256), (8, 1600569535), (10, 1280455628), (20, 640227814), (40, 320113907), (163, 78555560), (326, 39277780), (652, 19638890), (815, 15711112), (1304, 9819445), (1630, 7855556), (3260, 3927778), (6520, 1963889)]