51992590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:265

約数の個数: 64

約数和(自身を含む): 105380352

約数和(自身を除く): 53387762

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 71, 86, 130, 131, 142, 215, 262, 355, 430, 559, 655, 710, 923, 1118, 1310, 1703, 1846, 2795, 3053, 3406, 4615, 5590, 5633, 6106, 8515, 9230, 9301, 11266, 15265, 17030, 18602, 28165, 30530, 39689, 46505, 56330, 73229, 79378, 93010, 120913, 146458, 198445, 241826, 366145, 396890, 399943, 604565, 732290, 799886, 1209130, 1999715, 3999430, 5199259, 10398518, 25996295, 51992590]

約数ペア:

[(1, 51992590), (2, 25996295), (5, 10398518), (10, 5199259), (13, 3999430), (26, 1999715), (43, 1209130), (65, 799886), (71, 732290), (86, 604565), (130, 399943), (131, 396890), (142, 366145), (215, 241826), (262, 198445), (355, 146458), (430, 120913), (559, 93010), (655, 79378), (710, 73229), (923, 56330), (1118, 46505), (1310, 39689), (1703, 30530), (1846, 28165), (2795, 18602), (3053, 17030), (3406, 15265), (4615, 11266), (5590, 9301), (5633, 9230), (6106, 8515)]