684940

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1489}}^1$

素因数の和:1521

約数の個数: 24

約数和(自身を含む): 1501920

約数和(自身を除く): 816980

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 1489, 2978, 5956, 7445, 14890, 29780, 34247, 68494, 136988, 171235, 342470, 684940]

約数ペア:

[(1, 684940), (2, 342470), (4, 171235), (5, 136988), (10, 68494), (20, 34247), (23, 29780), (46, 14890), (92, 7445), (115, 5956), (230, 2978), (460, 1489)]