12997220

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{22409}}^1$

素因数の和:22447

約数の個数: 24

約数和(自身を含む): 28236600

約数和(自身を除く): 15239380

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 22409, 44818, 89636, 112045, 224090, 448180, 649861, 1299722, 2599444, 3249305, 6498610, 12997220]

約数ペア:

[(1, 12997220), (2, 6498610), (4, 3249305), (5, 2599444), (10, 1299722), (20, 649861), (29, 448180), (58, 224090), (116, 112045), (145, 89636), (290, 44818), (580, 22409)]