964751440

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{280451}}^1$

素因数の和:280507

約数の個数: 40

約数和(自身を含む): 2295219168

約数和(自身を除く): 1330467728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 280451, 560902, 1121804, 1402255, 2243608, 2804510, 4487216, 5609020, 11218040, 12059393, 22436080, 24118786, 48237572, 60296965, 96475144, 120593930, 192950288, 241187860, 482375720, 964751440]

約数ペア:

[(1, 964751440), (2, 482375720), (4, 241187860), (5, 192950288), (8, 120593930), (10, 96475144), (16, 60296965), (20, 48237572), (40, 24118786), (43, 22436080), (80, 12059393), (86, 11218040), (172, 5609020), (215, 4487216), (344, 2804510), (430, 2243608), (688, 1402255), (860, 1121804), (1720, 560902), (3440, 280451)]