19900480

素因数分解:

$2^6\times 5^1\times {\mathrm{62189}}^1$

素因数の和:62206

約数の個数: 28

約数和(自身を含む): 47388780

約数和(自身を除く): 27488300

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 62189, 124378, 248756, 310945, 497512, 621890, 995024, 1243780, 1990048, 2487560, 3980096, 4975120, 9950240, 19900480]

約数ペア:

[(1, 19900480), (2, 9950240), (4, 4975120), (5, 3980096), (8, 2487560), (10, 1990048), (16, 1243780), (20, 995024), (32, 621890), (40, 497512), (64, 310945), (80, 248756), (160, 124378), (320, 62189)]