81372148

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{353}}^1$

素因数の和:425

約数の個数: 72

約数和(自身を含む): 174134016

約数和(自身を除く): 92761868

約数列:

[1, 2, 4, 11, 13, 22, 26, 31, 44, 52, 62, 124, 143, 169, 286, 338, 341, 353, 403, 572, 676, 682, 706, 806, 1364, 1412, 1612, 1859, 3718, 3883, 4433, 4589, 5239, 7436, 7766, 8866, 9178, 10478, 10943, 15532, 17732, 18356, 20956, 21886, 43772, 50479, 57629, 59657, 100958, 115258, 119314, 120373, 142259, 201916, 230516, 238628, 240746, 284518, 481492, 569036, 656227, 1312454, 1564849, 1849367, 2624908, 3129698, 3698734, 6259396, 7397468, 20343037, 40686074, 81372148]

約数ペア:

[(1, 81372148), (2, 40686074), (4, 20343037), (11, 7397468), (13, 6259396), (22, 3698734), (26, 3129698), (31, 2624908), (44, 1849367), (52, 1564849), (62, 1312454), (124, 656227), (143, 569036), (169, 481492), (286, 284518), (338, 240746), (341, 238628), (353, 230516), (403, 201916), (572, 142259), (676, 120373), (682, 119314), (706, 115258), (806, 100958), (1364, 59657), (1412, 57629), (1612, 50479), (1859, 43772), (3718, 21886), (3883, 20956), (4433, 18356), (4589, 17732), (5239, 15532), (7436, 10943), (7766, 10478), (8866, 9178)]