26730520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{15541}}^1$

素因数の和:15595

約数の個数: 32

約数和(自身を含む): 61546320

約数和(自身を除く): 34815800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 15541, 31082, 62164, 77705, 124328, 155410, 310820, 621640, 668263, 1336526, 2673052, 3341315, 5346104, 6682630, 13365260, 26730520]

約数ペア:

[(1, 26730520), (2, 13365260), (4, 6682630), (5, 5346104), (8, 3341315), (10, 2673052), (20, 1336526), (40, 668263), (43, 621640), (86, 310820), (172, 155410), (215, 124328), (344, 77705), (430, 62164), (860, 31082), (1720, 15541)]