138563840

素因数分解:

$2^8\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1051}}^1$

素因数の和:1175

約数の個数: 72

約数和(自身を含む): 335444928

約数和(自身を除く): 196881088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 103, 128, 160, 206, 256, 320, 412, 515, 640, 824, 1030, 1051, 1280, 1648, 2060, 2102, 3296, 4120, 4204, 5255, 6592, 8240, 8408, 10510, 13184, 16480, 16816, 21020, 26368, 32960, 33632, 42040, 65920, 67264, 84080, 108253, 131840, 134528, 168160, 216506, 269056, 336320, 433012, 541265, 672640, 866024, 1082530, 1345280, 1732048, 2165060, 3464096, 4330120, 6928192, 8660240, 13856384, 17320480, 27712768, 34640960, 69281920, 138563840]

約数ペア:

[(1, 138563840), (2, 69281920), (4, 34640960), (5, 27712768), (8, 17320480), (10, 13856384), (16, 8660240), (20, 6928192), (32, 4330120), (40, 3464096), (64, 2165060), (80, 1732048), (103, 1345280), (128, 1082530), (160, 866024), (206, 672640), (256, 541265), (320, 433012), (412, 336320), (515, 269056), (640, 216506), (824, 168160), (1030, 134528), (1051, 131840), (1280, 108253), (1648, 84080), (2060, 67264), (2102, 65920), (3296, 42040), (4120, 33632), (4204, 32960), (5255, 26368), (6592, 21020), (8240, 16816), (8408, 16480), (10510, 13184)]