28338140

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{12539}}^1$

素因数の和:12661

約数の個数: 24

約数和(自身を含む): 60041520

約数和(自身を除く): 31703380

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 12539, 25078, 50156, 62695, 125390, 250780, 1416907, 2833814, 5667628, 7084535, 14169070, 28338140]

約数ペア:

[(1, 28338140), (2, 14169070), (4, 7084535), (5, 5667628), (10, 2833814), (20, 1416907), (113, 250780), (226, 125390), (452, 62695), (565, 50156), (1130, 25078), (2260, 12539)]