68705980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{1093}}^1$

素因数の和:1558

約数の個数: 48

約数和(自身を含む): 165412800

約数和(自身を除く): 96706820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 449, 898, 1093, 1796, 2186, 2245, 3143, 4372, 4490, 5465, 6286, 7651, 8980, 10930, 12572, 15302, 15715, 21860, 30604, 31430, 38255, 62860, 76510, 153020, 490757, 981514, 1963028, 2453785, 3435299, 4907570, 6870598, 9815140, 13741196, 17176495, 34352990, 68705980]

約数ペア:

[(1, 68705980), (2, 34352990), (4, 17176495), (5, 13741196), (7, 9815140), (10, 6870598), (14, 4907570), (20, 3435299), (28, 2453785), (35, 1963028), (70, 981514), (140, 490757), (449, 153020), (898, 76510), (1093, 62860), (1796, 38255), (2186, 31430), (2245, 30604), (3143, 21860), (4372, 15715), (4490, 15302), (5465, 12572), (6286, 10930), (7651, 8980)]