257220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1429}}^1$

素因数の和:1444

約数の個数: 36

約数和(自身を含む): 780780

約数和(自身を除く): 523560

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1429, 2858, 4287, 5716, 7145, 8574, 12861, 14290, 17148, 21435, 25722, 28580, 42870, 51444, 64305, 85740, 128610, 257220]

約数ペア:

[(1, 257220), (2, 128610), (3, 85740), (4, 64305), (5, 51444), (6, 42870), (9, 28580), (10, 25722), (12, 21435), (15, 17148), (18, 14290), (20, 12861), (30, 8574), (36, 7145), (45, 5716), (60, 4287), (90, 2858), (180, 1429)]