20478270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{16649}}^1$

素因数の和:16700

約数の個数: 32

約数和(自身を含む): 50349600

約数和(自身を除く): 29871330

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 41, 82, 123, 205, 246, 410, 615, 1230, 16649, 33298, 49947, 83245, 99894, 166490, 249735, 499470, 682609, 1365218, 2047827, 3413045, 4095654, 6826090, 10239135, 20478270]

約数ペア:

[(1, 20478270), (2, 10239135), (3, 6826090), (5, 4095654), (6, 3413045), (10, 2047827), (15, 1365218), (30, 682609), (41, 499470), (82, 249735), (123, 166490), (205, 99894), (246, 83245), (410, 49947), (615, 33298), (1230, 16649)]