19675180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{449}}^1$

素因数の和:778

約数の個数: 48

約数和(自身を含む): 47476800

約数和(自身を除く): 27801620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 313, 449, 626, 898, 1252, 1565, 1796, 2191, 2245, 3130, 3143, 4382, 4490, 6260, 6286, 8764, 8980, 10955, 12572, 15715, 21910, 31430, 43820, 62860, 140537, 281074, 562148, 702685, 983759, 1405370, 1967518, 2810740, 3935036, 4918795, 9837590, 19675180]

約数ペア:

[(1, 19675180), (2, 9837590), (4, 4918795), (5, 3935036), (7, 2810740), (10, 1967518), (14, 1405370), (20, 983759), (28, 702685), (35, 562148), (70, 281074), (140, 140537), (313, 62860), (449, 43820), (626, 31430), (898, 21910), (1252, 15715), (1565, 12572), (1796, 10955), (2191, 8980), (2245, 8764), (3130, 6286), (3143, 6260), (4382, 4490)]