385515315

素因数分解:

$3^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{21799}}^1$

素因数の和:21944

約数の個数: 32

約数和(自身を含む): 690624000

約数和(自身を除く): 305108685

約数列:

[1, 3, 5, 9, 15, 27, 45, 131, 135, 393, 655, 1179, 1965, 3537, 5895, 17685, 21799, 65397, 108995, 196191, 326985, 588573, 980955, 2855669, 2942865, 8567007, 14278345, 25701021, 42835035, 77103063, 128505105, 385515315]

約数ペア:

[(1, 385515315), (3, 128505105), (5, 77103063), (9, 42835035), (15, 25701021), (27, 14278345), (45, 8567007), (131, 2942865), (135, 2855669), (393, 980955), (655, 588573), (1179, 326985), (1965, 196191), (3537, 108995), (5895, 65397), (17685, 21799)]