65391080

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{6361}}^1$

素因数の和:6629

約数の個数: 32

約数和(自身を含む): 147725640

約数和(自身を除く): 82334560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 6361, 10280, 12722, 25444, 31805, 50888, 63610, 127220, 254440, 1634777, 3269554, 6539108, 8173885, 13078216, 16347770, 32695540, 65391080]

約数ペア:

[(1, 65391080), (2, 32695540), (4, 16347770), (5, 13078216), (8, 8173885), (10, 6539108), (20, 3269554), (40, 1634777), (257, 254440), (514, 127220), (1028, 63610), (1285, 50888), (2056, 31805), (2570, 25444), (5140, 12722), (6361, 10280)]