16804936520

素因数分解:

$2^3\times 5^1\times {\mathrm{420123413}}^1$

素因数の和:420123424

約数の個数: 16

約数和(自身を含む): 37811107260

約数和(自身を除く): 21006170740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 420123413, 840246826, 1680493652, 2100617065, 3360987304, 4201234130, 8402468260, 16804936520]

約数ペア:

[(1, 16804936520), (2, 8402468260), (4, 4201234130), (5, 3360987304), (8, 2100617065), (10, 1680493652), (20, 840246826), (40, 420123413)]