981834975

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{20879}}^1$

素因数の和:20925

約数の個数: 72

約数和(自身を含む): 2019513600

約数和(自身を除く): 1037678625

約数列:

[1, 3, 5, 9, 11, 15, 19, 25, 33, 45, 55, 57, 75, 95, 99, 165, 171, 209, 225, 275, 285, 475, 495, 627, 825, 855, 1045, 1425, 1881, 2475, 3135, 4275, 5225, 9405, 15675, 20879, 47025, 62637, 104395, 187911, 229669, 313185, 396701, 521975, 689007, 939555, 1148345, 1190103, 1565925, 1983505, 2067021, 3445035, 3570309, 4363711, 4697775, 5741725, 5950515, 9917525, 10335105, 13091133, 17225175, 17851545, 21818555, 29752575, 39273399, 51675525, 65455665, 89257725, 109092775, 196366995, 327278325, 981834975]

約数ペア:

[(1, 981834975), (3, 327278325), (5, 196366995), (9, 109092775), (11, 89257725), (15, 65455665), (19, 51675525), (25, 39273399), (33, 29752575), (45, 21818555), (55, 17851545), (57, 17225175), (75, 13091133), (95, 10335105), (99, 9917525), (165, 5950515), (171, 5741725), (209, 4697775), (225, 4363711), (275, 3570309), (285, 3445035), (475, 2067021), (495, 1983505), (627, 1565925), (825, 1190103), (855, 1148345), (1045, 939555), (1425, 689007), (1881, 521975), (2475, 396701), (3135, 313185), (4275, 229669), (5225, 187911), (9405, 104395), (15675, 62637), (20879, 47025)]