66882741025

素因数分解:

$5^2\times {\mathrm{31}}^2\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{269}}^1$

素因数の和:551

約数の個数: 72

約数和(自身を含む): 87768489600

約数和(自身を除く): 20885748575

約数列:

[1, 5, 25, 31, 79, 131, 155, 269, 395, 655, 775, 961, 1345, 1975, 2449, 3275, 4061, 4805, 6725, 8339, 10349, 12245, 20305, 21251, 24025, 35239, 41695, 51745, 61225, 75919, 101525, 106255, 125891, 176195, 208475, 258509, 258725, 320819, 379595, 531275, 629455, 658781, 880975, 1092409, 1292545, 1604095, 1897975, 2783881, 3147275, 3293905, 5462045, 6462725, 8020475, 9945389, 13919405, 16469525, 20422211, 27310225, 33864679, 49726945, 69597025, 86300311, 102111055, 169323395, 248634725, 431501555, 510555275, 846616975, 2157507775, 2675309641, 13376548205, 66882741025]

約数ペア:

[(1, 66882741025), (5, 13376548205), (25, 2675309641), (31, 2157507775), (79, 846616975), (131, 510555275), (155, 431501555), (269, 248634725), (395, 169323395), (655, 102111055), (775, 86300311), (961, 69597025), (1345, 49726945), (1975, 33864679), (2449, 27310225), (3275, 20422211), (4061, 16469525), (4805, 13919405), (6725, 9945389), (8339, 8020475), (10349, 6462725), (12245, 5462045), (20305, 3293905), (21251, 3147275), (24025, 2783881), (35239, 1897975), (41695, 1604095), (51745, 1292545), (61225, 1092409), (75919, 880975), (101525, 658781), (106255, 629455), (125891, 531275), (176195, 379595), (208475, 320819), (258509, 258725)]