85840640

素因数分解:

$2^8\times 5^1\times {\mathrm{199}}^1\times {\mathrm{337}}^1$

素因数の和:557

約数の個数: 72

約数和(自身を含む): 207261600

約数和(自身を除く): 121420960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 199, 256, 320, 337, 398, 640, 674, 796, 995, 1280, 1348, 1592, 1685, 1990, 2696, 3184, 3370, 3980, 5392, 6368, 6740, 7960, 10784, 12736, 13480, 15920, 21568, 25472, 26960, 31840, 43136, 50944, 53920, 63680, 67063, 86272, 107840, 127360, 134126, 215680, 254720, 268252, 335315, 431360, 536504, 670630, 1073008, 1341260, 2146016, 2682520, 4292032, 5365040, 8584064, 10730080, 17168128, 21460160, 42920320, 85840640]

約数ペア:

[(1, 85840640), (2, 42920320), (4, 21460160), (5, 17168128), (8, 10730080), (10, 8584064), (16, 5365040), (20, 4292032), (32, 2682520), (40, 2146016), (64, 1341260), (80, 1073008), (128, 670630), (160, 536504), (199, 431360), (256, 335315), (320, 268252), (337, 254720), (398, 215680), (640, 134126), (674, 127360), (796, 107840), (995, 86272), (1280, 67063), (1348, 63680), (1592, 53920), (1685, 50944), (1990, 43136), (2696, 31840), (3184, 26960), (3370, 25472), (3980, 21568), (5392, 15920), (6368, 13480), (6740, 12736), (7960, 10784)]