1388805225

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{1089259}}^1$

素因数の和:1089289

約数の個数: 24

約数和(自身を含む): 2431228320

約数和(自身を除く): 1042423095

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 1089259, 3267777, 5446295, 16338885, 18517403, 27231475, 55552209, 81694425, 92587015, 277761045, 462935075, 1388805225]

約数ペア:

[(1, 1388805225), (3, 462935075), (5, 277761045), (15, 92587015), (17, 81694425), (25, 55552209), (51, 27231475), (75, 18517403), (85, 16338885), (255, 5446295), (425, 3267777), (1275, 1089259)]