289400480

素因数分解:

$2^5\times 5^1\times {\mathrm{223}}^1\times {\mathrm{8111}}^1$

素因数の和:8349

約数の個数: 48

約数和(自身を含む): 686859264

約数和(自身を除く): 397458784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 223, 446, 892, 1115, 1784, 2230, 3568, 4460, 7136, 8111, 8920, 16222, 17840, 32444, 35680, 40555, 64888, 81110, 129776, 162220, 259552, 324440, 648880, 1297760, 1808753, 3617506, 7235012, 9043765, 14470024, 18087530, 28940048, 36175060, 57880096, 72350120, 144700240, 289400480]

約数ペア:

[(1, 289400480), (2, 144700240), (4, 72350120), (5, 57880096), (8, 36175060), (10, 28940048), (16, 18087530), (20, 14470024), (32, 9043765), (40, 7235012), (80, 3617506), (160, 1808753), (223, 1297760), (446, 648880), (892, 324440), (1115, 259552), (1784, 162220), (2230, 129776), (3568, 81110), (4460, 64888), (7136, 40555), (8111, 35680), (8920, 32444), (16222, 17840)]