64818140

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{140909}}^1$

素因数の和:140941

約数の個数: 24

約数和(自身を含む): 142037280

約数和(自身を除く): 77219140

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 140909, 281818, 563636, 704545, 1409090, 2818180, 3240907, 6481814, 12963628, 16204535, 32409070, 64818140]

約数ペア:

[(1, 64818140), (2, 32409070), (4, 16204535), (5, 12963628), (10, 6481814), (20, 3240907), (23, 2818180), (46, 1409090), (92, 704545), (115, 563636), (230, 281818), (460, 140909)]