20120899175

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{311}}^1\times {\mathrm{15313}}^1$

素因数の和:15660

約数の個数: 36

約数和(自身を含む): 27105412464

約数和(自身を除く): 6984513289

約数列:

[1, 5, 13, 25, 65, 169, 311, 325, 845, 1555, 4043, 4225, 7775, 15313, 20215, 52559, 76565, 101075, 199069, 262795, 382825, 995345, 1313975, 2587897, 4762343, 4976725, 12939485, 23811715, 61910459, 64697425, 119058575, 309552295, 804835967, 1547761475, 4024179835, 20120899175]

約数ペア:

[(1, 20120899175), (5, 4024179835), (13, 1547761475), (25, 804835967), (65, 309552295), (169, 119058575), (311, 64697425), (325, 61910459), (845, 23811715), (1555, 12939485), (4043, 4976725), (4225, 4762343), (7775, 2587897), (15313, 1313975), (20215, 995345), (52559, 382825), (76565, 262795), (101075, 199069)]