20512019925

素因数分解:

$3^2\times 5^2\times {\mathrm{823}}^1\times {\mathrm{110771}}^1$

素因数の和:111610

約数の個数: 36

約数和(自身を含む): 36784279584

約数和(自身を除く): 16272259659

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 823, 2469, 4115, 7407, 12345, 20575, 37035, 61725, 110771, 185175, 332313, 553855, 996939, 1661565, 2769275, 4984695, 8307825, 24923475, 91164533, 273493599, 455822665, 820480797, 1367467995, 2279113325, 4102403985, 6837339975, 20512019925]

約数ペア:

[(1, 20512019925), (3, 6837339975), (5, 4102403985), (9, 2279113325), (15, 1367467995), (25, 820480797), (45, 455822665), (75, 273493599), (225, 91164533), (823, 24923475), (2469, 8307825), (4115, 4984695), (7407, 2769275), (12345, 1661565), (20575, 996939), (37035, 553855), (61725, 332313), (110771, 185175)]