172645540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{507781}}^1$

素因数の和:507807

約数の個数: 24

約数和(自身を含む): 383883192

約数和(自身を除く): 211237652

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 507781, 1015562, 2031124, 2538905, 5077810, 8632277, 10155620, 17264554, 34529108, 43161385, 86322770, 172645540]

約数ペア:

[(1, 172645540), (2, 86322770), (4, 43161385), (5, 34529108), (10, 17264554), (17, 10155620), (20, 8632277), (34, 5077810), (68, 2538905), (85, 2031124), (170, 1015562), (340, 507781)]