12920020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{28087}}^1$

素因数の和:28119

約数の個数: 24

約数和(自身を含む): 28312704

約数和(自身を除く): 15392684

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 28087, 56174, 112348, 140435, 280870, 561740, 646001, 1292002, 2584004, 3230005, 6460010, 12920020]

約数ペア:

[(1, 12920020), (2, 6460010), (4, 3230005), (5, 2584004), (10, 1292002), (20, 646001), (23, 561740), (46, 280870), (92, 140435), (115, 112348), (230, 56174), (460, 28087)]