20165990515

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{853}}^1\times {\mathrm{1021}}^1$

素因数の和:2311

約数の個数: 32

約数和(自身を含む): 26518790592

約数和(自身を除く): 6352800077

約数列:

[1, 5, 11, 55, 421, 853, 1021, 2105, 4265, 4631, 5105, 9383, 11231, 23155, 46915, 56155, 359113, 429841, 870913, 1795565, 2149205, 3950243, 4354565, 4728251, 9580043, 19751215, 23641255, 47900215, 366654373, 1833271865, 4033198103, 20165990515]

約数ペア:

[(1, 20165990515), (5, 4033198103), (11, 1833271865), (55, 366654373), (421, 47900215), (853, 23641255), (1021, 19751215), (2105, 9580043), (4265, 4728251), (4631, 4354565), (5105, 3950243), (9383, 2149205), (11231, 1795565), (23155, 870913), (46915, 429841), (56155, 359113)]