28281580

素因数分解:

$2^2\times 5^1\times {\mathrm{1039}}^1\times {\mathrm{1361}}^1$

素因数の和:2409

約数の個数: 24

約数和(自身を含む): 59492160

約数和(自身を除く): 31210580

約数列:

[1, 2, 4, 5, 10, 20, 1039, 1361, 2078, 2722, 4156, 5195, 5444, 6805, 10390, 13610, 20780, 27220, 1414079, 2828158, 5656316, 7070395, 14140790, 28281580]

約数ペア:

[(1, 28281580), (2, 14140790), (4, 7070395), (5, 5656316), (10, 2828158), (20, 1414079), (1039, 27220), (1361, 20780), (2078, 13610), (2722, 10390), (4156, 6805), (5195, 5444)]