128571296

素因数分解:

$2^5\times 7^2\times {\mathrm{167}}^1\times {\mathrm{491}}^1$

素因数の和:682

約数の個数: 72

約数和(自身を含む): 296817696

約数和(自身を除く): 168246400

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 167, 196, 224, 334, 392, 491, 668, 784, 982, 1169, 1336, 1568, 1964, 2338, 2672, 3437, 3928, 4676, 5344, 6874, 7856, 8183, 9352, 13748, 15712, 16366, 18704, 24059, 27496, 32732, 37408, 48118, 54992, 65464, 81997, 96236, 109984, 130928, 163994, 192472, 261856, 327988, 384944, 573979, 655976, 769888, 1147958, 1311952, 2295916, 2623904, 4017853, 4591832, 8035706, 9183664, 16071412, 18367328, 32142824, 64285648, 128571296]

約数ペア:

[(1, 128571296), (2, 64285648), (4, 32142824), (7, 18367328), (8, 16071412), (14, 9183664), (16, 8035706), (28, 4591832), (32, 4017853), (49, 2623904), (56, 2295916), (98, 1311952), (112, 1147958), (167, 769888), (196, 655976), (224, 573979), (334, 384944), (392, 327988), (491, 261856), (668, 192472), (784, 163994), (982, 130928), (1169, 109984), (1336, 96236), (1568, 81997), (1964, 65464), (2338, 54992), (2672, 48118), (3437, 37408), (3928, 32732), (4676, 27496), (5344, 24059), (6874, 18704), (7856, 16366), (8183, 15712), (9352, 13748)]