20225996

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{157}}^1$

素因数の和:318

約数の個数: 48

約数和(自身を含む): 42045696

約数和(自身を除く): 21819700

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 107, 157, 172, 214, 301, 314, 428, 602, 628, 749, 1099, 1204, 1498, 2198, 2996, 4396, 4601, 6751, 9202, 13502, 16799, 18404, 27004, 32207, 33598, 47257, 64414, 67196, 94514, 117593, 128828, 189028, 235186, 470372, 722357, 1444714, 2889428, 5056499, 10112998, 20225996]

約数ペア:

[(1, 20225996), (2, 10112998), (4, 5056499), (7, 2889428), (14, 1444714), (28, 722357), (43, 470372), (86, 235186), (107, 189028), (157, 128828), (172, 117593), (214, 94514), (301, 67196), (314, 64414), (428, 47257), (602, 33598), (628, 32207), (749, 27004), (1099, 18404), (1204, 16799), (1498, 13502), (2198, 9202), (2996, 6751), (4396, 4601)]