19444280

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{6659}}^1$

素因数の和:6743

約数の個数: 32

約数和(自身を含む): 44355600

約数和(自身を除く): 24911320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 6659, 13318, 26636, 33295, 53272, 66590, 133180, 266360, 486107, 972214, 1944428, 2430535, 3888856, 4861070, 9722140, 19444280]

約数ペア:

[(1, 19444280), (2, 9722140), (4, 4861070), (5, 3888856), (8, 2430535), (10, 1944428), (20, 972214), (40, 486107), (73, 266360), (146, 133180), (292, 66590), (365, 53272), (584, 33295), (730, 26636), (1460, 13318), (2920, 6659)]