159499216

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{321571}}^1$

素因数の和:321610

約数の個数: 20

約数和(自身を含む): 318999424

約数和(自身を除く): 159500208

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 321571, 643142, 1286284, 2572568, 5145136, 9968701, 19937402, 39874804, 79749608, 159499216]

約数ペア:

[(1, 159499216), (2, 79749608), (4, 39874804), (8, 19937402), (16, 9968701), (31, 5145136), (62, 2572568), (124, 1286284), (248, 643142), (496, 321571)]