20818528

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{353}}^1$

素因数の和:479

約数の個数: 48

約数和(自身を含む): 43711920

約数和(自身を除く): 22893392

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 97, 152, 194, 304, 353, 388, 608, 706, 776, 1412, 1552, 1843, 2824, 3104, 3686, 5648, 6707, 7372, 11296, 13414, 14744, 26828, 29488, 34241, 53656, 58976, 68482, 107312, 136964, 214624, 273928, 547856, 650579, 1095712, 1301158, 2602316, 5204632, 10409264, 20818528]

約数ペア:

[(1, 20818528), (2, 10409264), (4, 5204632), (8, 2602316), (16, 1301158), (19, 1095712), (32, 650579), (38, 547856), (76, 273928), (97, 214624), (152, 136964), (194, 107312), (304, 68482), (353, 58976), (388, 53656), (608, 34241), (706, 29488), (776, 26828), (1412, 14744), (1552, 13414), (1843, 11296), (2824, 7372), (3104, 6707), (3686, 5648)]