78690856

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{461}}^1\times {\mathrm{1123}}^1$

素因数の和:1609

約数の個数: 32

約数和(自身を含む): 155786400

約数和(自身を除く): 77095544

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 461, 922, 1123, 1844, 2246, 3688, 4492, 8759, 8984, 17518, 21337, 35036, 42674, 70072, 85348, 170696, 517703, 1035406, 2070812, 4141624, 9836357, 19672714, 39345428, 78690856]

約数ペア:

[(1, 78690856), (2, 39345428), (4, 19672714), (8, 9836357), (19, 4141624), (38, 2070812), (76, 1035406), (152, 517703), (461, 170696), (922, 85348), (1123, 70072), (1844, 42674), (2246, 35036), (3688, 21337), (4492, 17518), (8759, 8984)]