3858640

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{347}}^1$

素因数の和:499

約数の個数: 40

約数和(自身を含む): 9061920

約数和(自身を除く): 5203280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 347, 556, 694, 695, 1112, 1388, 1390, 1735, 2224, 2776, 2780, 3470, 5552, 5560, 6940, 11120, 13880, 27760, 48233, 96466, 192932, 241165, 385864, 482330, 771728, 964660, 1929320, 3858640]

約数ペア:

[(1, 3858640), (2, 1929320), (4, 964660), (5, 771728), (8, 482330), (10, 385864), (16, 241165), (20, 192932), (40, 96466), (80, 48233), (139, 27760), (278, 13880), (347, 11120), (556, 6940), (694, 5560), (695, 5552), (1112, 3470), (1388, 2780), (1390, 2776), (1735, 2224)]