68671960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{245257}}^1$

素因数の和:245275

約数の個数: 32

約数和(自身を含む): 176585760

約数和(自身を除く): 107913800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 245257, 490514, 981028, 1226285, 1716799, 1962056, 2452570, 3433598, 4905140, 6867196, 8583995, 9810280, 13734392, 17167990, 34335980, 68671960]

約数ペア:

[(1, 68671960), (2, 34335980), (4, 17167990), (5, 13734392), (7, 9810280), (8, 8583995), (10, 6867196), (14, 4905140), (20, 3433598), (28, 2452570), (35, 1962056), (40, 1716799), (56, 1226285), (70, 981028), (140, 490514), (280, 245257)]