90780568

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{1619}}^1$

素因数の和:1831

約数の個数: 32

約数和(自身を含む): 175348800

約数和(自身を除く): 84568232

約数列:

[1, 2, 4, 8, 43, 86, 163, 172, 326, 344, 652, 1304, 1619, 3238, 6476, 7009, 12952, 14018, 28036, 56072, 69617, 139234, 263897, 278468, 527794, 556936, 1055588, 2111176, 11347571, 22695142, 45390284, 90780568]

約数ペア:

[(1, 90780568), (2, 45390284), (4, 22695142), (8, 11347571), (43, 2111176), (86, 1055588), (163, 556936), (172, 527794), (326, 278468), (344, 263897), (652, 139234), (1304, 69617), (1619, 56072), (3238, 28036), (6476, 14018), (7009, 12952)]