389955975

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{937}}^1$

素因数の和:1160

約数の個数: 48

約数和(自身を含む): 669957120

約数和(自身を除く): 280001145

約数列:

[1, 3, 5, 15, 25, 31, 75, 93, 155, 179, 465, 537, 775, 895, 937, 2325, 2685, 2811, 4475, 4685, 5549, 13425, 14055, 16647, 23425, 27745, 29047, 70275, 83235, 87141, 138725, 145235, 167723, 416175, 435705, 503169, 726175, 838615, 2178525, 2515845, 4193075, 5199413, 12579225, 15598239, 25997065, 77991195, 129985325, 389955975]

約数ペア:

[(1, 389955975), (3, 129985325), (5, 77991195), (15, 25997065), (25, 15598239), (31, 12579225), (75, 5199413), (93, 4193075), (155, 2515845), (179, 2178525), (465, 838615), (537, 726175), (775, 503169), (895, 435705), (937, 416175), (2325, 167723), (2685, 145235), (2811, 138725), (4475, 87141), (4685, 83235), (5549, 70275), (13425, 29047), (14055, 27745), (16647, 23425)]