138446560

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{17659}}^1$

素因数の和:17688

約数の個数: 72

約数和(自身を含む): 380502360

約数和(自身を除く): 242055800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 17659, 35318, 70636, 88295, 123613, 141272, 176590, 247226, 282544, 353180, 494452, 565088, 618065, 706360, 865291, 988904, 1236130, 1412720, 1730582, 1977808, 2472260, 2825440, 3461164, 3955616, 4326455, 4944520, 6922328, 8652910, 9889040, 13844656, 17305820, 19778080, 27689312, 34611640, 69223280, 138446560]

約数ペア:

[(1, 138446560), (2, 69223280), (4, 34611640), (5, 27689312), (7, 19778080), (8, 17305820), (10, 13844656), (14, 9889040), (16, 8652910), (20, 6922328), (28, 4944520), (32, 4326455), (35, 3955616), (40, 3461164), (49, 2825440), (56, 2472260), (70, 1977808), (80, 1730582), (98, 1412720), (112, 1236130), (140, 988904), (160, 865291), (196, 706360), (224, 618065), (245, 565088), (280, 494452), (392, 353180), (490, 282544), (560, 247226), (784, 176590), (980, 141272), (1120, 123613), (1568, 88295), (1960, 70636), (3920, 35318), (7840, 17659)]