15155440

素因数分解:

$2^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{487}}^1$

素因数の和:889

約数の個数: 40

約数和(自身を含む): 35399520

約数和(自身を除く): 20244080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389, 487, 778, 974, 1556, 1945, 1948, 2435, 3112, 3890, 3896, 4870, 6224, 7780, 7792, 9740, 15560, 19480, 31120, 38960, 189443, 378886, 757772, 947215, 1515544, 1894430, 3031088, 3788860, 7577720, 15155440]

約数ペア:

[(1, 15155440), (2, 7577720), (4, 3788860), (5, 3031088), (8, 1894430), (10, 1515544), (16, 947215), (20, 757772), (40, 378886), (80, 189443), (389, 38960), (487, 31120), (778, 19480), (974, 15560), (1556, 9740), (1945, 7792), (1948, 7780), (2435, 6224), (3112, 4870), (3890, 3896)]