31128216

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:229

約数の個数: 128

約数和(自身を含む): 94617600

約数和(自身を除く): 63489384

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 31, 42, 43, 56, 62, 84, 86, 93, 124, 129, 139, 168, 172, 186, 217, 248, 258, 278, 301, 344, 372, 417, 434, 516, 556, 602, 651, 744, 834, 868, 903, 973, 1032, 1112, 1204, 1302, 1333, 1668, 1736, 1806, 1946, 2408, 2604, 2666, 2919, 3336, 3612, 3892, 3999, 4309, 5208, 5332, 5838, 5977, 7224, 7784, 7998, 8618, 9331, 10664, 11676, 11954, 12927, 15996, 17236, 17931, 18662, 23352, 23908, 25854, 27993, 30163, 31992, 34472, 35862, 37324, 41839, 47816, 51708, 55986, 60326, 71724, 74648, 83678, 90489, 103416, 111972, 120652, 125517, 143448, 167356, 180978, 185287, 223944, 241304, 251034, 334712, 361956, 370574, 502068, 555861, 723912, 741148, 1004136, 1111722, 1297009, 1482296, 2223444, 2594018, 3891027, 4446888, 5188036, 7782054, 10376072, 15564108, 31128216]

約数ペア:

[(1, 31128216), (2, 15564108), (3, 10376072), (4, 7782054), (6, 5188036), (7, 4446888), (8, 3891027), (12, 2594018), (14, 2223444), (21, 1482296), (24, 1297009), (28, 1111722), (31, 1004136), (42, 741148), (43, 723912), (56, 555861), (62, 502068), (84, 370574), (86, 361956), (93, 334712), (124, 251034), (129, 241304), (139, 223944), (168, 185287), (172, 180978), (186, 167356), (217, 143448), (248, 125517), (258, 120652), (278, 111972), (301, 103416), (344, 90489), (372, 83678), (417, 74648), (434, 71724), (516, 60326), (556, 55986), (602, 51708), (651, 47816), (744, 41839), (834, 37324), (868, 35862), (903, 34472), (973, 31992), (1032, 30163), (1112, 27993), (1204, 25854), (1302, 23908), (1333, 23352), (1668, 18662), (1736, 17931), (1806, 17236), (1946, 15996), (2408, 12927), (2604, 11954), (2666, 11676), (2919, 10664), (3336, 9331), (3612, 8618), (3892, 7998), (3999, 7784), (4309, 7224), (5208, 5977), (5332, 5838)]