8180120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{15731}}^1$

素因数の和:15755

約数の個数: 32

約数和(自身を含む): 19822320

約数和(自身を除く): 11642200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 15731, 31462, 62924, 78655, 125848, 157310, 204503, 314620, 409006, 629240, 818012, 1022515, 1636024, 2045030, 4090060, 8180120]

約数ペア:

[(1, 8180120), (2, 4090060), (4, 2045030), (5, 1636024), (8, 1022515), (10, 818012), (13, 629240), (20, 409006), (26, 314620), (40, 204503), (52, 157310), (65, 125848), (104, 78655), (130, 62924), (260, 31462), (520, 15731)]