30012880

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2699}}^1$

素因数の和:2851

約数の個数: 40

約数和(自身を含む): 70308000

約数和(自身を除く): 40295120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 2224, 2699, 2780, 5398, 5560, 10796, 11120, 13495, 21592, 26990, 43184, 53980, 107960, 215920, 375161, 750322, 1500644, 1875805, 3001288, 3751610, 6002576, 7503220, 15006440, 30012880]

約数ペア:

[(1, 30012880), (2, 15006440), (4, 7503220), (5, 6002576), (8, 3751610), (10, 3001288), (16, 1875805), (20, 1500644), (40, 750322), (80, 375161), (139, 215920), (278, 107960), (556, 53980), (695, 43184), (1112, 26990), (1390, 21592), (2224, 13495), (2699, 11120), (2780, 10796), (5398, 5560)]