20630884

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 39916800

約数和(自身を除く): 19285916

約数列:

[1, 2, 4, 19, 38, 43, 59, 76, 86, 107, 118, 172, 214, 236, 428, 817, 1121, 1634, 2033, 2242, 2537, 3268, 4066, 4484, 4601, 5074, 6313, 8132, 9202, 10148, 12626, 18404, 25252, 48203, 87419, 96406, 119947, 174838, 192812, 239894, 271459, 349676, 479788, 542918, 1085836, 5157721, 10315442, 20630884]

約数ペア:

[(1, 20630884), (2, 10315442), (4, 5157721), (19, 1085836), (38, 542918), (43, 479788), (59, 349676), (76, 271459), (86, 239894), (107, 192812), (118, 174838), (172, 119947), (214, 96406), (236, 87419), (428, 48203), (817, 25252), (1121, 18404), (1634, 12626), (2033, 10148), (2242, 9202), (2537, 8132), (3268, 6313), (4066, 5074), (4484, 4601)]