490969615

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{383}}^1$

素因数の和:639

約数の個数: 32

約数和(自身を含む): 629047296

約数和(自身を除く): 138077681

約数列:

[1, 5, 23, 71, 115, 157, 355, 383, 785, 1633, 1915, 3611, 8165, 8809, 11147, 18055, 27193, 44045, 55735, 60131, 135965, 256381, 300655, 625439, 1281905, 1383013, 3127195, 4269301, 6915065, 21346505, 98193923, 490969615]

約数ペア:

[(1, 490969615), (5, 98193923), (23, 21346505), (71, 6915065), (115, 4269301), (157, 3127195), (355, 1383013), (383, 1281905), (785, 625439), (1633, 300655), (1915, 256381), (3611, 135965), (8165, 60131), (8809, 55735), (11147, 44045), (18055, 27193)]