81220390

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{477767}}^1$

素因数の和:477791

約数の個数: 16

約数和(自身を含む): 154796832

約数和(自身を除く): 73576442

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 477767, 955534, 2388835, 4777670, 8122039, 16244078, 40610195, 81220390]

約数ペア:

[(1, 81220390), (2, 40610195), (5, 16244078), (10, 8122039), (17, 4777670), (34, 2388835), (85, 955534), (170, 477767)]