205122710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{19973}}^1$

素因数の和:20072

約数の個数: 32

約数和(自身を含む): 402675840

約数和(自身を除く): 197553130

約数列:

[1, 2, 5, 10, 13, 26, 65, 79, 130, 158, 395, 790, 1027, 2054, 5135, 10270, 19973, 39946, 99865, 199730, 259649, 519298, 1298245, 1577867, 2596490, 3155734, 7889335, 15778670, 20512271, 41024542, 102561355, 205122710]

約数ペア:

[(1, 205122710), (2, 102561355), (5, 41024542), (10, 20512271), (13, 15778670), (26, 7889335), (65, 3155734), (79, 2596490), (130, 1577867), (158, 1298245), (395, 519298), (790, 259649), (1027, 199730), (2054, 99865), (5135, 39946), (10270, 19973)]