129219980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{280913}}^1$

素因数の和:280945

約数の個数: 24

約数和(自身を含む): 283161312

約数和(自身を除く): 153941332

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 280913, 561826, 1123652, 1404565, 2809130, 5618260, 6460999, 12921998, 25843996, 32304995, 64609990, 129219980]

約数ペア:

[(1, 129219980), (2, 64609990), (4, 32304995), (5, 25843996), (10, 12921998), (20, 6460999), (23, 5618260), (46, 2809130), (92, 1404565), (115, 1123652), (230, 561826), (460, 280913)]