20000415

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1913}}^1$

素因数の和:1979

約数の個数: 32

約数和(自身を含む): 34727616

約数和(自身を除く): 14727201

約数列:

[1, 3, 5, 15, 17, 41, 51, 85, 123, 205, 255, 615, 697, 1913, 2091, 3485, 5739, 9565, 10455, 28695, 32521, 78433, 97563, 162605, 235299, 392165, 487815, 1176495, 1333361, 4000083, 6666805, 20000415]

約数ペア:

[(1, 20000415), (3, 6666805), (5, 4000083), (15, 1333361), (17, 1176495), (41, 487815), (51, 392165), (85, 235299), (123, 162605), (205, 97563), (255, 78433), (615, 32521), (697, 28695), (1913, 10455), (2091, 9565), (3485, 5739)]