18320225

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{307}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 29331456

約数和(自身を除く): 11011231

約数列:

[1, 5, 7, 11, 25, 31, 35, 55, 77, 155, 175, 217, 275, 307, 341, 385, 775, 1085, 1535, 1705, 1925, 2149, 2387, 3377, 5425, 7675, 8525, 9517, 10745, 11935, 16885, 23639, 47585, 53725, 59675, 66619, 84425, 104687, 118195, 237925, 333095, 523435, 590975, 732809, 1665475, 2617175, 3664045, 18320225]

約数ペア:

[(1, 18320225), (5, 3664045), (7, 2617175), (11, 1665475), (25, 732809), (31, 590975), (35, 523435), (55, 333095), (77, 237925), (155, 118195), (175, 104687), (217, 84425), (275, 66619), (307, 59675), (341, 53725), (385, 47585), (775, 23639), (1085, 16885), (1535, 11935), (1705, 10745), (1925, 9517), (2149, 8525), (2387, 7675), (3377, 5425)]