721257896

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{20551}}^1$

素因数の和:20705

約数の個数: 32

約数和(自身を含む): 1398358080

約数和(自身を除く): 677100184

約数列:

[1, 2, 4, 8, 41, 82, 107, 164, 214, 328, 428, 856, 4387, 8774, 17548, 20551, 35096, 41102, 82204, 164408, 842591, 1685182, 2198957, 3370364, 4397914, 6740728, 8795828, 17591656, 90157237, 180314474, 360628948, 721257896]

約数ペア:

[(1, 721257896), (2, 360628948), (4, 180314474), (8, 90157237), (41, 17591656), (82, 8795828), (107, 6740728), (164, 4397914), (214, 3370364), (328, 2198957), (428, 1685182), (856, 842591), (4387, 164408), (8774, 82204), (17548, 41102), (20551, 35096)]