27798740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{81761}}^1$

素因数の和:81787

約数の個数: 24

約数和(自身を含む): 61812072

約数和(自身を除く): 34013332

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 81761, 163522, 327044, 408805, 817610, 1389937, 1635220, 2779874, 5559748, 6949685, 13899370, 27798740]

約数ペア:

[(1, 27798740), (2, 13899370), (4, 6949685), (5, 5559748), (10, 2779874), (17, 1635220), (20, 1389937), (34, 817610), (68, 408805), (85, 327044), (170, 163522), (340, 81761)]