28738745

素因数分解:

$5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{2861}}^1$

素因数の和:2921

約数の個数: 24

約数和(自身を含む): 41109768

約数和(自身を除く): 12371023

約数列:

[1, 5, 7, 35, 41, 49, 205, 245, 287, 1435, 2009, 2861, 10045, 14305, 20027, 100135, 117301, 140189, 586505, 700945, 821107, 4105535, 5747749, 28738745]

約数ペア:

[(1, 28738745), (5, 5747749), (7, 4105535), (35, 821107), (41, 700945), (49, 586505), (205, 140189), (245, 117301), (287, 100135), (1435, 20027), (2009, 14305), (2861, 10045)]