28378820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{433}}^1$

素因数の和:584

約数の個数: 48

約数和(自身を含む): 62339760

約数和(自身を除く): 33960940

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 113, 116, 145, 226, 290, 433, 452, 565, 580, 866, 1130, 1732, 2165, 2260, 3277, 4330, 6554, 8660, 12557, 13108, 16385, 25114, 32770, 48929, 50228, 62785, 65540, 97858, 125570, 195716, 244645, 251140, 489290, 978580, 1418941, 2837882, 5675764, 7094705, 14189410, 28378820]

約数ペア:

[(1, 28378820), (2, 14189410), (4, 7094705), (5, 5675764), (10, 2837882), (20, 1418941), (29, 978580), (58, 489290), (113, 251140), (116, 244645), (145, 195716), (226, 125570), (290, 97858), (433, 65540), (452, 62785), (565, 50228), (580, 48929), (866, 32770), (1130, 25114), (1732, 16385), (2165, 13108), (2260, 12557), (3277, 8660), (4330, 6554)]