20126951978

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{51229}}^1$

素因数の和:51475

約数の個数: 48

約数和(自身を含む): 37143799200

約数和(自身を除く): 17016847222

約数列:

[1, 2, 7, 14, 19, 38, 49, 98, 133, 211, 266, 422, 931, 1477, 1862, 2954, 4009, 8018, 10339, 20678, 28063, 51229, 56126, 102458, 196441, 358603, 392882, 717206, 973351, 1946702, 2510221, 5020442, 6813457, 10809319, 13626914, 21618638, 47694199, 75665233, 95388398, 151330466, 205377061, 410754122, 529656631, 1059313262, 1437639427, 2875278854, 10063475989, 20126951978]

約数ペア:

[(1, 20126951978), (2, 10063475989), (7, 2875278854), (14, 1437639427), (19, 1059313262), (38, 529656631), (49, 410754122), (98, 205377061), (133, 151330466), (211, 95388398), (266, 75665233), (422, 47694199), (931, 21618638), (1477, 13626914), (1862, 10809319), (2954, 6813457), (4009, 5020442), (8018, 2510221), (10339, 1946702), (20678, 973351), (28063, 717206), (51229, 392882), (56126, 358603), (102458, 196441)]