27891740

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 60211200

約数和(自身を除く): 32319460

約数列:

[1, 2, 4, 5, 10, 20, 79, 127, 139, 158, 254, 278, 316, 395, 508, 556, 635, 695, 790, 1270, 1390, 1580, 2540, 2780, 10033, 10981, 17653, 20066, 21962, 35306, 40132, 43924, 50165, 54905, 70612, 88265, 100330, 109810, 176530, 200660, 219620, 353060, 1394587, 2789174, 5578348, 6972935, 13945870, 27891740]

約数ペア:

[(1, 27891740), (2, 13945870), (4, 6972935), (5, 5578348), (10, 2789174), (20, 1394587), (79, 353060), (127, 219620), (139, 200660), (158, 176530), (254, 109810), (278, 100330), (316, 88265), (395, 70612), (508, 54905), (556, 50165), (635, 43924), (695, 40132), (790, 35306), (1270, 21962), (1390, 20066), (1580, 17653), (2540, 10981), (2780, 10033)]