31191220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67807}}^1$

素因数の和:67839

約数の個数: 24

約数和(自身を含む): 68350464

約数和(自身を除く): 37159244

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 67807, 135614, 271228, 339035, 678070, 1356140, 1559561, 3119122, 6238244, 7797805, 15595610, 31191220]

約数ペア:

[(1, 31191220), (2, 15595610), (4, 7797805), (5, 6238244), (10, 3119122), (20, 1559561), (23, 1356140), (46, 678070), (92, 339035), (115, 271228), (230, 135614), (460, 67807)]