71807540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{1559}}^1$

素因数の和:1629

約数の個数: 72

約数和(自身を含む): 179262720

約数和(自身を除く): 107455180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 49, 70, 94, 98, 140, 188, 196, 235, 245, 329, 470, 490, 658, 940, 980, 1316, 1559, 1645, 2303, 3118, 3290, 4606, 6236, 6580, 7795, 9212, 10913, 11515, 15590, 21826, 23030, 31180, 43652, 46060, 54565, 73273, 76391, 109130, 146546, 152782, 218260, 293092, 305564, 366365, 381955, 512911, 732730, 763910, 1025822, 1465460, 1527820, 2051644, 2564555, 3590377, 5129110, 7180754, 10258220, 14361508, 17951885, 35903770, 71807540]

約数ペア:

[(1, 71807540), (2, 35903770), (4, 17951885), (5, 14361508), (7, 10258220), (10, 7180754), (14, 5129110), (20, 3590377), (28, 2564555), (35, 2051644), (47, 1527820), (49, 1465460), (70, 1025822), (94, 763910), (98, 732730), (140, 512911), (188, 381955), (196, 366365), (235, 305564), (245, 293092), (329, 218260), (470, 152782), (490, 146546), (658, 109130), (940, 76391), (980, 73273), (1316, 54565), (1559, 46060), (1645, 43652), (2303, 31180), (3118, 23030), (3290, 21826), (4606, 15590), (6236, 11515), (6580, 10913), (7795, 9212)]