19326920

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4691}}^1$

素因数の和:4805

約数の個数: 32

約数和(自身を含む): 43917120

約数和(自身を除く): 24590200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 4691, 9382, 18764, 23455, 37528, 46910, 93820, 187640, 483173, 966346, 1932692, 2415865, 3865384, 4831730, 9663460, 19326920]

約数ペア:

[(1, 19326920), (2, 9663460), (4, 4831730), (5, 3865384), (8, 2415865), (10, 1932692), (20, 966346), (40, 483173), (103, 187640), (206, 93820), (412, 46910), (515, 37528), (824, 23455), (1030, 18764), (2060, 9382), (4120, 4691)]