18667960

素因数分解:

$2^3\times 5^1\times {\mathrm{233}}^1\times {\mathrm{2003}}^1$

素因数の和:2247

約数の個数: 32

約数和(自身を含む): 42204240

約数和(自身を除く): 23536280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 233, 466, 932, 1165, 1864, 2003, 2330, 4006, 4660, 8012, 9320, 10015, 16024, 20030, 40060, 80120, 466699, 933398, 1866796, 2333495, 3733592, 4666990, 9333980, 18667960]

約数ペア:

[(1, 18667960), (2, 9333980), (4, 4666990), (5, 3733592), (8, 2333495), (10, 1866796), (20, 933398), (40, 466699), (233, 80120), (466, 40060), (932, 20030), (1165, 16024), (1864, 10015), (2003, 9320), (2330, 8012), (4006, 4660)]