28196775

素因数分解:

$3^3\times 5^2\times {\mathrm{37}}^1\times {\mathrm{1129}}^1$

素因数の和:1185

約数の個数: 48

約数和(自身を含む): 53245600

約数和(自身を除く): 25048825

約数列:

[1, 3, 5, 9, 15, 25, 27, 37, 45, 75, 111, 135, 185, 225, 333, 555, 675, 925, 999, 1129, 1665, 2775, 3387, 4995, 5645, 8325, 10161, 16935, 24975, 28225, 30483, 41773, 50805, 84675, 125319, 152415, 208865, 254025, 375957, 626595, 762075, 1044325, 1127871, 1879785, 3132975, 5639355, 9398925, 28196775]

約数ペア:

[(1, 28196775), (3, 9398925), (5, 5639355), (9, 3132975), (15, 1879785), (25, 1127871), (27, 1044325), (37, 762075), (45, 626595), (75, 375957), (111, 254025), (135, 208865), (185, 152415), (225, 125319), (333, 84675), (555, 50805), (675, 41773), (925, 30483), (999, 28225), (1129, 24975), (1665, 16935), (2775, 10161), (3387, 8325), (4995, 5645)]