20884740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{3911}}^1$

素因数の和:4012

約数の個数: 48

約数和(自身を含む): 59149440

約数和(自身を除く): 38264700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 89, 178, 267, 356, 445, 534, 890, 1068, 1335, 1780, 2670, 3911, 5340, 7822, 11733, 15644, 19555, 23466, 39110, 46932, 58665, 78220, 117330, 234660, 348079, 696158, 1044237, 1392316, 1740395, 2088474, 3480790, 4176948, 5221185, 6961580, 10442370, 20884740]

約数ペア:

[(1, 20884740), (2, 10442370), (3, 6961580), (4, 5221185), (5, 4176948), (6, 3480790), (10, 2088474), (12, 1740395), (15, 1392316), (20, 1044237), (30, 696158), (60, 348079), (89, 234660), (178, 117330), (267, 78220), (356, 58665), (445, 46932), (534, 39110), (890, 23466), (1068, 19555), (1335, 15644), (1780, 11733), (2670, 7822), (3911, 5340)]