78141280

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{9967}}^1$

素因数の和:9996

約数の個数: 72

約数和(自身を含む): 214770528

約数和(自身を除く): 136629248

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 9967, 19934, 39868, 49835, 69769, 79736, 99670, 139538, 159472, 199340, 279076, 318944, 348845, 398680, 488383, 558152, 697690, 797360, 976766, 1116304, 1395380, 1594720, 1953532, 2232608, 2441915, 2790760, 3907064, 4883830, 5581520, 7814128, 9767660, 11163040, 15628256, 19535320, 39070640, 78141280]

約数ペア:

[(1, 78141280), (2, 39070640), (4, 19535320), (5, 15628256), (7, 11163040), (8, 9767660), (10, 7814128), (14, 5581520), (16, 4883830), (20, 3907064), (28, 2790760), (32, 2441915), (35, 2232608), (40, 1953532), (49, 1594720), (56, 1395380), (70, 1116304), (80, 976766), (98, 797360), (112, 697690), (140, 558152), (160, 488383), (196, 398680), (224, 348845), (245, 318944), (280, 279076), (392, 199340), (490, 159472), (560, 139538), (784, 99670), (980, 79736), (1120, 69769), (1568, 49835), (1960, 39868), (3920, 19934), (7840, 9967)]