81684356

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{151}}^1$

素因数の和:372

約数の個数: 48

約数和(自身を含む): 158016768

約数和(自身を除く): 76332412

約数列:

[1, 2, 4, 13, 26, 52, 101, 103, 151, 202, 206, 302, 404, 412, 604, 1313, 1339, 1963, 2626, 2678, 3926, 5252, 5356, 7852, 10403, 15251, 15553, 20806, 30502, 31106, 41612, 61004, 62212, 135239, 198263, 202189, 270478, 396526, 404378, 540956, 793052, 808756, 1570853, 3141706, 6283412, 20421089, 40842178, 81684356]

約数ペア:

[(1, 81684356), (2, 40842178), (4, 20421089), (13, 6283412), (26, 3141706), (52, 1570853), (101, 808756), (103, 793052), (151, 540956), (202, 404378), (206, 396526), (302, 270478), (404, 202189), (412, 198263), (604, 135239), (1313, 62212), (1339, 61004), (1963, 41612), (2626, 31106), (2678, 30502), (3926, 20806), (5252, 15553), (5356, 15251), (7852, 10403)]