18901141675

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{1951}}^1\times {\mathrm{2293}}^1$

素因数の和:4280

約数の個数: 36

約数和(自身を含む): 25403058624

約数和(自身を除く): 6501916949

約数列:

[1, 5, 13, 25, 65, 169, 325, 845, 1951, 2293, 4225, 9755, 11465, 25363, 29809, 48775, 57325, 126815, 149045, 329719, 387517, 634075, 745225, 1648595, 1937585, 4473643, 8242975, 9687925, 22368215, 58157359, 111841075, 290786795, 756045667, 1453933975, 3780228335, 18901141675]

約数ペア:

[(1, 18901141675), (5, 3780228335), (13, 1453933975), (25, 756045667), (65, 290786795), (169, 111841075), (325, 58157359), (845, 22368215), (1951, 9687925), (2293, 8242975), (4225, 4473643), (9755, 1937585), (11465, 1648595), (25363, 745225), (29809, 634075), (48775, 387517), (57325, 329719), (126815, 149045)]