65776720

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{5237}}^1$

素因数の和:5407

約数の個数: 40

約数和(自身を含む): 153934344

約数和(自身を除く): 88157624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1570, 2512, 3140, 5237, 6280, 10474, 12560, 20948, 26185, 41896, 52370, 83792, 104740, 209480, 418960, 822209, 1644418, 3288836, 4111045, 6577672, 8222090, 13155344, 16444180, 32888360, 65776720]

約数ペア:

[(1, 65776720), (2, 32888360), (4, 16444180), (5, 13155344), (8, 8222090), (10, 6577672), (16, 4111045), (20, 3288836), (40, 1644418), (80, 822209), (157, 418960), (314, 209480), (628, 104740), (785, 83792), (1256, 52370), (1570, 41896), (2512, 26185), (3140, 20948), (5237, 12560), (6280, 10474)]