1728441040

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{304303}}^1$

素因数の和:304387

約数の個数: 40

約数和(自身を含む): 4075239168

約数和(自身を除く): 2346798128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 304303, 608606, 1217212, 1521515, 2434424, 3043030, 4868848, 6086060, 12172120, 21605513, 24344240, 43211026, 86422052, 108027565, 172844104, 216055130, 345688208, 432110260, 864220520, 1728441040]

約数ペア:

[(1, 1728441040), (2, 864220520), (4, 432110260), (5, 345688208), (8, 216055130), (10, 172844104), (16, 108027565), (20, 86422052), (40, 43211026), (71, 24344240), (80, 21605513), (142, 12172120), (284, 6086060), (355, 4868848), (568, 3043030), (710, 2434424), (1136, 1521515), (1420, 1217212), (2840, 608606), (5680, 304303)]