31282760

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{919}}^1$

素因数の和:990

約数の個数: 64

約数和(自身を含む): 75513600

約数和(自身を除く): 44230840

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 37, 40, 46, 74, 92, 115, 148, 184, 185, 230, 296, 370, 460, 740, 851, 919, 920, 1480, 1702, 1838, 3404, 3676, 4255, 4595, 6808, 7352, 8510, 9190, 17020, 18380, 21137, 34003, 34040, 36760, 42274, 68006, 84548, 105685, 136012, 169096, 170015, 211370, 272024, 340030, 422740, 680060, 782069, 845480, 1360120, 1564138, 3128276, 3910345, 6256552, 7820690, 15641380, 31282760]

約数ペア:

[(1, 31282760), (2, 15641380), (4, 7820690), (5, 6256552), (8, 3910345), (10, 3128276), (20, 1564138), (23, 1360120), (37, 845480), (40, 782069), (46, 680060), (74, 422740), (92, 340030), (115, 272024), (148, 211370), (184, 170015), (185, 169096), (230, 136012), (296, 105685), (370, 84548), (460, 68006), (740, 42274), (851, 36760), (919, 34040), (920, 34003), (1480, 21137), (1702, 18380), (1838, 17020), (3404, 9190), (3676, 8510), (4255, 7352), (4595, 6808)]