10781810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{421}}^1$

素因数の和:638

約数の個数: 32

約数和(自身を含む): 21056112

約数和(自身を除く): 10274302

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 197, 394, 421, 842, 985, 1970, 2105, 2561, 4210, 5122, 5473, 10946, 12805, 25610, 27365, 54730, 82937, 165874, 414685, 829370, 1078181, 2156362, 5390905, 10781810]

約数ペア:

[(1, 10781810), (2, 5390905), (5, 2156362), (10, 1078181), (13, 829370), (26, 414685), (65, 165874), (130, 82937), (197, 54730), (394, 27365), (421, 25610), (842, 12805), (985, 10946), (1970, 5473), (2105, 5122), (2561, 4210)]