380920

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:207

約数の個数: 32

約数和(自身を含む): 874800

約数和(自身を除く): 493880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 107, 178, 214, 356, 428, 445, 535, 712, 856, 890, 1070, 1780, 2140, 3560, 4280, 9523, 19046, 38092, 47615, 76184, 95230, 190460, 380920]

約数ペア:

[(1, 380920), (2, 190460), (4, 95230), (5, 76184), (8, 47615), (10, 38092), (20, 19046), (40, 9523), (89, 4280), (107, 3560), (178, 2140), (214, 1780), (356, 1070), (428, 890), (445, 856), (535, 712)]