128808472

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{39953}}^1$

素因数の和:40003

約数の個数: 32

約数和(自身を含む): 268490880

約数和(自身を除く): 139682408

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 39953, 79906, 159812, 319624, 519389, 1038778, 1238543, 2077556, 2477086, 4155112, 4954172, 9908344, 16101059, 32202118, 64404236, 128808472]

約数ペア:

[(1, 128808472), (2, 64404236), (4, 32202118), (8, 16101059), (13, 9908344), (26, 4954172), (31, 4155112), (52, 2477086), (62, 2077556), (104, 1238543), (124, 1038778), (248, 519389), (403, 319624), (806, 159812), (1612, 79906), (3224, 39953)]