20168584912

素因数分解:

$2^4\times 7^1\times {\mathrm{103}}^1\times {\mathrm{643}}^1\times {\mathrm{2719}}^1$

素因数の和:3480

約数の個数: 80

約数和(自身を含む): 45179330560

約数和(自身を除く): 25010745648

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 103, 112, 206, 412, 643, 721, 824, 1286, 1442, 1648, 2572, 2719, 2884, 4501, 5144, 5438, 5768, 9002, 10288, 10876, 11536, 18004, 19033, 21752, 36008, 38066, 43504, 66229, 72016, 76132, 132458, 152264, 264916, 280057, 304528, 463603, 529832, 560114, 927206, 1059664, 1120228, 1748317, 1854412, 1960399, 2240456, 3496634, 3708824, 3920798, 4480912, 6993268, 7417648, 7841596, 12238219, 13986536, 15683192, 24476438, 27973072, 31366384, 48952876, 97905752, 180076651, 195811504, 360153302, 720306604, 1260536557, 1440613208, 2521073114, 2881226416, 5042146228, 10084292456, 20168584912]

約数ペア:

[(1, 20168584912), (2, 10084292456), (4, 5042146228), (7, 2881226416), (8, 2521073114), (14, 1440613208), (16, 1260536557), (28, 720306604), (56, 360153302), (103, 195811504), (112, 180076651), (206, 97905752), (412, 48952876), (643, 31366384), (721, 27973072), (824, 24476438), (1286, 15683192), (1442, 13986536), (1648, 12238219), (2572, 7841596), (2719, 7417648), (2884, 6993268), (4501, 4480912), (5144, 3920798), (5438, 3708824), (5768, 3496634), (9002, 2240456), (10288, 1960399), (10876, 1854412), (11536, 1748317), (18004, 1120228), (19033, 1059664), (21752, 927206), (36008, 560114), (38066, 529832), (43504, 463603), (66229, 304528), (72016, 280057), (76132, 264916), (132458, 152264)]