389638760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1391567}}^1$

素因数の和:1391585

約数の個数: 32

約数和(自身を含む): 1001928960

約数和(自身を除く): 612290200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1391567, 2783134, 5566268, 6957835, 9740969, 11132536, 13915670, 19481938, 27831340, 38963876, 48704845, 55662680, 77927752, 97409690, 194819380, 389638760]

約数ペア:

[(1, 389638760), (2, 194819380), (4, 97409690), (5, 77927752), (7, 55662680), (8, 48704845), (10, 38963876), (14, 27831340), (20, 19481938), (28, 13915670), (35, 11132536), (40, 9740969), (56, 6957835), (70, 5566268), (140, 2783134), (280, 1391567)]