664741644

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{431}}^1$

素因数の和:556

約数の個数: 144

約数和(自身を含む): 1880879616

約数和(自身を除く): 1216137972

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 43, 49, 61, 84, 86, 98, 122, 129, 147, 172, 183, 196, 244, 258, 294, 301, 366, 427, 431, 516, 588, 602, 732, 854, 862, 903, 1204, 1281, 1293, 1708, 1724, 1806, 2107, 2562, 2586, 2623, 2989, 3017, 3612, 4214, 5124, 5172, 5246, 5978, 6034, 6321, 7869, 8428, 8967, 9051, 10492, 11956, 12068, 12642, 15738, 17934, 18102, 18361, 18533, 21119, 25284, 26291, 31476, 35868, 36204, 36722, 37066, 42238, 52582, 55083, 55599, 63357, 73444, 74132, 78873, 84476, 105164, 110166, 111198, 126714, 128527, 129731, 157746, 184037, 220332, 222396, 253428, 257054, 259462, 315492, 368074, 385581, 389193, 514108, 518924, 552111, 736148, 771162, 778386, 908117, 1104222, 1130513, 1288259, 1542324, 1556772, 1816234, 2208444, 2261026, 2576518, 2724351, 3391539, 3632468, 3864777, 4522052, 5153036, 5448702, 6783078, 7729554, 7913591, 10897404, 13566156, 15459108, 15827182, 23740773, 31654364, 47481546, 55395137, 94963092, 110790274, 166185411, 221580548, 332370822, 664741644]

約数ペア:

[(1, 664741644), (2, 332370822), (3, 221580548), (4, 166185411), (6, 110790274), (7, 94963092), (12, 55395137), (14, 47481546), (21, 31654364), (28, 23740773), (42, 15827182), (43, 15459108), (49, 13566156), (61, 10897404), (84, 7913591), (86, 7729554), (98, 6783078), (122, 5448702), (129, 5153036), (147, 4522052), (172, 3864777), (183, 3632468), (196, 3391539), (244, 2724351), (258, 2576518), (294, 2261026), (301, 2208444), (366, 1816234), (427, 1556772), (431, 1542324), (516, 1288259), (588, 1130513), (602, 1104222), (732, 908117), (854, 778386), (862, 771162), (903, 736148), (1204, 552111), (1281, 518924), (1293, 514108), (1708, 389193), (1724, 385581), (1806, 368074), (2107, 315492), (2562, 259462), (2586, 257054), (2623, 253428), (2989, 222396), (3017, 220332), (3612, 184037), (4214, 157746), (5124, 129731), (5172, 128527), (5246, 126714), (5978, 111198), (6034, 110166), (6321, 105164), (7869, 84476), (8428, 78873), (8967, 74132), (9051, 73444), (10492, 63357), (11956, 55599), (12068, 55083), (12642, 52582), (15738, 42238), (17934, 37066), (18102, 36722), (18361, 36204), (18533, 35868), (21119, 31476), (25284, 26291)]