13205270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{647}}^1$

素因数の和:824

約数の個数: 32

約数和(自身を含む): 25800768

約数和(自身を除く): 12595498

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 157, 314, 647, 785, 1294, 1570, 2041, 3235, 4082, 6470, 8411, 10205, 16822, 20410, 42055, 84110, 101579, 203158, 507895, 1015790, 1320527, 2641054, 6602635, 13205270]

約数ペア:

[(1, 13205270), (2, 6602635), (5, 2641054), (10, 1320527), (13, 1015790), (26, 507895), (65, 203158), (130, 101579), (157, 84110), (314, 42055), (647, 20410), (785, 16822), (1294, 10205), (1570, 8411), (2041, 6470), (3235, 4082)]