86845780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{8737}}^1$

素因数の和:8824

約数の個数: 48

約数和(自身を含む): 211389696

約数和(自身を除く): 124543916

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 8737, 9940, 17474, 34948, 43685, 61159, 87370, 122318, 174740, 244636, 305795, 611590, 620327, 1223180, 1240654, 2481308, 3101635, 4342289, 6203270, 8684578, 12406540, 17369156, 21711445, 43422890, 86845780]

約数ペア:

[(1, 86845780), (2, 43422890), (4, 21711445), (5, 17369156), (7, 12406540), (10, 8684578), (14, 6203270), (20, 4342289), (28, 3101635), (35, 2481308), (70, 1240654), (71, 1223180), (140, 620327), (142, 611590), (284, 305795), (355, 244636), (497, 174740), (710, 122318), (994, 87370), (1420, 61159), (1988, 43685), (2485, 34948), (4970, 17474), (8737, 9940)]