78490881

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2851}}^1$

素因数の和:2906

約数の個数: 48

約数和(自身を含む): 142371840

約数和(自身を除く): 63880959

約数列:

[1, 3, 7, 9, 19, 21, 23, 57, 63, 69, 133, 161, 171, 207, 399, 437, 483, 1197, 1311, 1449, 2851, 3059, 3933, 8553, 9177, 19957, 25659, 27531, 54169, 59871, 65573, 162507, 179613, 196719, 379183, 459011, 487521, 590157, 1137549, 1245887, 1377033, 3412647, 3737661, 4131099, 8721209, 11212983, 26163627, 78490881]

約数ペア:

[(1, 78490881), (3, 26163627), (7, 11212983), (9, 8721209), (19, 4131099), (21, 3737661), (23, 3412647), (57, 1377033), (63, 1245887), (69, 1137549), (133, 590157), (161, 487521), (171, 459011), (207, 379183), (399, 196719), (437, 179613), (483, 162507), (1197, 65573), (1311, 59871), (1449, 54169), (2851, 27531), (3059, 25659), (3933, 19957), (8553, 9177)]