20778828050

素因数分解:

$2^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{53699}}^1$

素因数の和:53891

約数の個数: 48

約数和(自身を含む): 39553272000

約数和(自身を除く): 18774443950

約数列:

[1, 2, 5, 10, 25, 50, 71, 109, 142, 218, 355, 545, 710, 1090, 1775, 2725, 3550, 5450, 7739, 15478, 38695, 53699, 77390, 107398, 193475, 268495, 386950, 536990, 1342475, 2684950, 3812629, 5853191, 7625258, 11706382, 19063145, 29265955, 38126290, 58531910, 95315725, 146329775, 190631450, 292659550, 415576561, 831153122, 2077882805, 4155765610, 10389414025, 20778828050]

約数ペア:

[(1, 20778828050), (2, 10389414025), (5, 4155765610), (10, 2077882805), (25, 831153122), (50, 415576561), (71, 292659550), (109, 190631450), (142, 146329775), (218, 95315725), (355, 58531910), (545, 38126290), (710, 29265955), (1090, 19063145), (1775, 11706382), (2725, 7625258), (3550, 5853191), (5450, 3812629), (7739, 2684950), (15478, 1342475), (38695, 536990), (53699, 386950), (77390, 268495), (107398, 193475)]