560720

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:219

約数の個数: 40

約数和(自身を含む): 1342176

約数和(自身を除く): 781456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 163, 172, 215, 326, 344, 430, 652, 688, 815, 860, 1304, 1630, 1720, 2608, 3260, 3440, 6520, 7009, 13040, 14018, 28036, 35045, 56072, 70090, 112144, 140180, 280360, 560720]

約数ペア:

[(1, 560720), (2, 280360), (4, 140180), (5, 112144), (8, 70090), (10, 56072), (16, 35045), (20, 28036), (40, 14018), (43, 13040), (80, 7009), (86, 6520), (163, 3440), (172, 3260), (215, 2608), (326, 1720), (344, 1630), (430, 1304), (652, 860), (688, 815)]