12505780

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{1823}}^1$

素因数の和:1853

約数の個数: 48

約数和(自身を含む): 30643200

約数和(自身を除く): 18137420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 1823, 3430, 3646, 6860, 7292, 9115, 12761, 18230, 25522, 36460, 51044, 63805, 89327, 127610, 178654, 255220, 357308, 446635, 625289, 893270, 1250578, 1786540, 2501156, 3126445, 6252890, 12505780]

約数ペア:

[(1, 12505780), (2, 6252890), (4, 3126445), (5, 2501156), (7, 1786540), (10, 1250578), (14, 893270), (20, 625289), (28, 446635), (35, 357308), (49, 255220), (70, 178654), (98, 127610), (140, 89327), (196, 63805), (245, 51044), (343, 36460), (490, 25522), (686, 18230), (980, 12761), (1372, 9115), (1715, 7292), (1823, 6860), (3430, 3646)]