678693616

素因数分解:

$2^4\times {\mathrm{137}}^1\times {\mathrm{309623}}^1$

素因数の和:309768

約数の個数: 20

約数和(自身を含む): 1324571472

約数和(自身を除く): 645877856

約数列:

[1, 2, 4, 8, 16, 137, 274, 548, 1096, 2192, 309623, 619246, 1238492, 2476984, 4953968, 42418351, 84836702, 169673404, 339346808, 678693616]

約数ペア:

[(1, 678693616), (2, 339346808), (4, 169673404), (8, 84836702), (16, 42418351), (137, 4953968), (274, 2476984), (548, 1238492), (1096, 619246), (2192, 309623)]