77685880

素因数分解:

$2^3\times 5^1\times {\mathrm{1361}}^1\times {\mathrm{1427}}^1$

素因数の和:2799

約数の個数: 32

約数和(自身を含む): 175044240

約数和(自身を除く): 97358360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1361, 1427, 2722, 2854, 5444, 5708, 6805, 7135, 10888, 11416, 13610, 14270, 27220, 28540, 54440, 57080, 1942147, 3884294, 7768588, 9710735, 15537176, 19421470, 38842940, 77685880]

約数ペア:

[(1, 77685880), (2, 38842940), (4, 19421470), (5, 15537176), (8, 9710735), (10, 7768588), (20, 3884294), (40, 1942147), (1361, 57080), (1427, 54440), (2722, 28540), (2854, 27220), (5444, 14270), (5708, 13610), (6805, 11416), (7135, 10888)]