251154618

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:165

約数の個数: 144

約数和(自身を含む): 630866880

約数和(自身を除く): 379712262

約数列:

[1, 2, 3, 6, 11, 13, 22, 23, 26, 33, 39, 46, 66, 69, 78, 89, 121, 138, 143, 169, 178, 242, 253, 267, 286, 299, 338, 363, 429, 506, 507, 534, 598, 726, 759, 858, 897, 979, 1014, 1157, 1518, 1573, 1794, 1859, 1958, 2047, 2314, 2783, 2937, 3146, 3289, 3471, 3718, 3887, 4094, 4719, 5566, 5577, 5874, 6141, 6578, 6942, 7774, 8349, 9438, 9867, 10769, 11154, 11661, 12282, 12727, 15041, 16698, 19734, 20449, 21538, 22517, 23322, 25454, 26611, 30082, 32307, 36179, 38181, 40898, 42757, 45034, 45123, 53222, 61347, 64614, 67551, 72358, 76362, 79833, 85514, 90246, 108537, 122694, 128271, 135102, 139997, 159666, 165451, 217074, 247687, 256542, 279994, 292721, 330902, 345943, 419991, 470327, 495374, 496353, 585442, 691886, 743061, 839982, 878163, 940654, 992706, 1037829, 1410981, 1486122, 1756326, 1819961, 2075658, 2821962, 3219931, 3639922, 3805373, 5459883, 6439862, 7610746, 9659793, 10919766, 11416119, 19319586, 22832238, 41859103, 83718206, 125577309, 251154618]

約数ペア:

[(1, 251154618), (2, 125577309), (3, 83718206), (6, 41859103), (11, 22832238), (13, 19319586), (22, 11416119), (23, 10919766), (26, 9659793), (33, 7610746), (39, 6439862), (46, 5459883), (66, 3805373), (69, 3639922), (78, 3219931), (89, 2821962), (121, 2075658), (138, 1819961), (143, 1756326), (169, 1486122), (178, 1410981), (242, 1037829), (253, 992706), (267, 940654), (286, 878163), (299, 839982), (338, 743061), (363, 691886), (429, 585442), (506, 496353), (507, 495374), (534, 470327), (598, 419991), (726, 345943), (759, 330902), (858, 292721), (897, 279994), (979, 256542), (1014, 247687), (1157, 217074), (1518, 165451), (1573, 159666), (1794, 139997), (1859, 135102), (1958, 128271), (2047, 122694), (2314, 108537), (2783, 90246), (2937, 85514), (3146, 79833), (3289, 76362), (3471, 72358), (3718, 67551), (3887, 64614), (4094, 61347), (4719, 53222), (5566, 45123), (5577, 45034), (5874, 42757), (6141, 40898), (6578, 38181), (6942, 36179), (7774, 32307), (8349, 30082), (9438, 26611), (9867, 25454), (10769, 23322), (11154, 22517), (11661, 21538), (12282, 20449), (12727, 19734), (15041, 16698)]