890000014

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{59}}^1\times {\mathrm{1229}}^1$

素因数の和:1345

約数の個数: 48

約数和(自身を含む): 1518361200

約数和(自身を除く): 628361186

約数列:

[1, 2, 17, 19, 34, 38, 59, 118, 323, 361, 646, 722, 1003, 1121, 1229, 2006, 2242, 2458, 6137, 12274, 19057, 20893, 21299, 23351, 38114, 41786, 42598, 46702, 72511, 145022, 362083, 396967, 443669, 724166, 793934, 887338, 1232687, 1377709, 2465374, 2755418, 7542373, 15084746, 23421053, 26176471, 46842106, 52352942, 445000007, 890000014]

約数ペア:

[(1, 890000014), (2, 445000007), (17, 52352942), (19, 46842106), (34, 26176471), (38, 23421053), (59, 15084746), (118, 7542373), (323, 2755418), (361, 2465374), (646, 1377709), (722, 1232687), (1003, 887338), (1121, 793934), (1229, 724166), (2006, 443669), (2242, 396967), (2458, 362083), (6137, 145022), (12274, 72511), (19057, 46702), (20893, 42598), (21299, 41786), (23351, 38114)]