20579745

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{307}}^1$

素因数の和:465

約数の個数: 32

約数和(自身を含む): 34151040

約数和(自身を除く): 13571295

約数列:

[1, 3, 5, 15, 41, 109, 123, 205, 307, 327, 545, 615, 921, 1535, 1635, 4469, 4605, 12587, 13407, 22345, 33463, 37761, 62935, 67035, 100389, 167315, 188805, 501945, 1371983, 4115949, 6859915, 20579745]

約数ペア:

[(1, 20579745), (3, 6859915), (5, 4115949), (15, 1371983), (41, 501945), (109, 188805), (123, 167315), (205, 100389), (307, 67035), (327, 62935), (545, 37761), (615, 33463), (921, 22345), (1535, 13407), (1635, 12587), (4469, 4605)]