28791260

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{281}}^1$

素因数の和:446

約数の個数: 48

約数和(自身を含む): 62536320

約数和(自身を除く): 33745060

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 109, 188, 218, 235, 281, 436, 470, 545, 562, 940, 1090, 1124, 1405, 2180, 2810, 5123, 5620, 10246, 13207, 20492, 25615, 26414, 30629, 51230, 52828, 61258, 66035, 102460, 122516, 132070, 153145, 264140, 306290, 612580, 1439563, 2879126, 5758252, 7197815, 14395630, 28791260]

約数ペア:

[(1, 28791260), (2, 14395630), (4, 7197815), (5, 5758252), (10, 2879126), (20, 1439563), (47, 612580), (94, 306290), (109, 264140), (188, 153145), (218, 132070), (235, 122516), (281, 102460), (436, 66035), (470, 61258), (545, 52828), (562, 51230), (940, 30629), (1090, 26414), (1124, 25615), (1405, 20492), (2180, 13207), (2810, 10246), (5123, 5620)]