156425780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{15737}}^1$

素因数の和:15824

約数の個数: 48

約数和(自身を含む): 380733696

約数和(自身を除く): 224307916

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, 9940, 15737, 31474, 62948, 78685, 110159, 157370, 220318, 314740, 440636, 550795, 1101590, 1117327, 2203180, 2234654, 4469308, 5586635, 7821289, 11173270, 15642578, 22346540, 31285156, 39106445, 78212890, 156425780]

約数ペア:

[(1, 156425780), (2, 78212890), (4, 39106445), (5, 31285156), (7, 22346540), (10, 15642578), (14, 11173270), (20, 7821289), (28, 5586635), (35, 4469308), (70, 2234654), (71, 2203180), (140, 1117327), (142, 1101590), (284, 550795), (355, 440636), (497, 314740), (710, 220318), (994, 157370), (1420, 110159), (1988, 78685), (2485, 62948), (4970, 31474), (9940, 15737)]