20405655550

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{8328839}}^1$

素因数の和:8328865

約数の個数: 36

約数和(自身を含む): 44151180840

約数和(自身を除く): 23745525290

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 175, 245, 350, 490, 1225, 2450, 8328839, 16657678, 41644195, 58301873, 83288390, 116603746, 208220975, 291509365, 408113111, 416441950, 583018730, 816226222, 1457546825, 2040565555, 2915093650, 4081131110, 10202827775, 20405655550]

約数ペア:

[(1, 20405655550), (2, 10202827775), (5, 4081131110), (7, 2915093650), (10, 2040565555), (14, 1457546825), (25, 816226222), (35, 583018730), (49, 416441950), (50, 408113111), (70, 291509365), (98, 208220975), (175, 116603746), (245, 83288390), (350, 58301873), (490, 41644195), (1225, 16657678), (2450, 8328839)]