648140

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1409}}^1$

素因数の和:1441

約数の個数: 24

約数和(自身を含む): 1421280

約数和(自身を除く): 773140

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 1409, 2818, 5636, 7045, 14090, 28180, 32407, 64814, 129628, 162035, 324070, 648140]

約数ペア:

[(1, 648140), (2, 324070), (4, 162035), (5, 129628), (10, 64814), (20, 32407), (23, 28180), (46, 14090), (92, 7045), (115, 5636), (230, 2818), (460, 1409)]