208122772

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{1259}}^1$

素因数の和:1321

約数の個数: 72

約数和(自身を含む): 454900320

約数和(自身を除く): 246777548

約数列:

[1, 2, 4, 11, 13, 17, 22, 26, 34, 44, 52, 68, 143, 187, 221, 286, 289, 374, 442, 572, 578, 748, 884, 1156, 1259, 2431, 2518, 3179, 3757, 4862, 5036, 6358, 7514, 9724, 12716, 13849, 15028, 16367, 21403, 27698, 32734, 41327, 42806, 55396, 65468, 82654, 85612, 165308, 180037, 235433, 278239, 360074, 363851, 470866, 556478, 720148, 727702, 941732, 1112956, 1455404, 3060629, 4002361, 4730063, 6121258, 8004722, 9460126, 12242516, 16009444, 18920252, 52030693, 104061386, 208122772]

約数ペア:

[(1, 208122772), (2, 104061386), (4, 52030693), (11, 18920252), (13, 16009444), (17, 12242516), (22, 9460126), (26, 8004722), (34, 6121258), (44, 4730063), (52, 4002361), (68, 3060629), (143, 1455404), (187, 1112956), (221, 941732), (286, 727702), (289, 720148), (374, 556478), (442, 470866), (572, 363851), (578, 360074), (748, 278239), (884, 235433), (1156, 180037), (1259, 165308), (2431, 85612), (2518, 82654), (3179, 65468), (3757, 55396), (4862, 42806), (5036, 41327), (6358, 32734), (7514, 27698), (9724, 21403), (12716, 16367), (13849, 15028)]