20404220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{44357}}^1$

素因数の和:44389

約数の個数: 24

約数和(自身を含む): 44712864

約数和(自身を除く): 24308644

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 44357, 88714, 177428, 221785, 443570, 887140, 1020211, 2040422, 4080844, 5101055, 10202110, 20404220]

約数ペア:

[(1, 20404220), (2, 10202110), (4, 5101055), (5, 4080844), (10, 2040422), (20, 1020211), (23, 887140), (46, 443570), (92, 221785), (115, 177428), (230, 88714), (460, 44357)]