19777375

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1$

素因数の和:300

約数の個数: 32

約数和(自身を含む): 26889408

約数和(自身を除く): 7112033

約数列:

[1, 5, 17, 25, 41, 85, 125, 205, 227, 425, 697, 1025, 1135, 2125, 3485, 3859, 5125, 5675, 9307, 17425, 19295, 28375, 46535, 87125, 96475, 158219, 232675, 482375, 791095, 1163375, 3955475, 19777375]

約数ペア:

[(1, 19777375), (5, 3955475), (17, 1163375), (25, 791095), (41, 482375), (85, 232675), (125, 158219), (205, 96475), (227, 87125), (425, 46535), (697, 28375), (1025, 19295), (1135, 17425), (2125, 9307), (3485, 5675), (3859, 5125)]