215781080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{174017}}^1$

素因数の和:174059

約数の個数: 32

約数和(自身を含む): 501171840

約数和(自身を除く): 285390760

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 174017, 348034, 696068, 870085, 1392136, 1740170, 3480340, 5394527, 6960680, 10789054, 21578108, 26972635, 43156216, 53945270, 107890540, 215781080]

約数ペア:

[(1, 215781080), (2, 107890540), (4, 53945270), (5, 43156216), (8, 26972635), (10, 21578108), (20, 10789054), (31, 6960680), (40, 5394527), (62, 3480340), (124, 1740170), (155, 1392136), (248, 870085), (310, 696068), (620, 348034), (1240, 174017)]