138367720

素因数分解:

$2^3\times 5^1\times {\mathrm{859}}^1\times {\mathrm{4027}}^1$

素因数の和:4897

約数の個数: 32

約数和(自身を含む): 311767200

約数和(自身を除く): 173399480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 859, 1718, 3436, 4027, 4295, 6872, 8054, 8590, 16108, 17180, 20135, 32216, 34360, 40270, 80540, 161080, 3459193, 6918386, 13836772, 17295965, 27673544, 34591930, 69183860, 138367720]

約数ペア:

[(1, 138367720), (2, 69183860), (4, 34591930), (5, 27673544), (8, 17295965), (10, 13836772), (20, 6918386), (40, 3459193), (859, 161080), (1718, 80540), (3436, 40270), (4027, 34360), (4295, 32216), (6872, 20135), (8054, 17180), (8590, 16108)]