28730780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{110503}}^1$

素因数の和:110525

約数の個数: 24

約数和(自身を含む): 64976352

約数和(自身を除く): 36245572

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 110503, 221006, 442012, 552515, 1105030, 1436539, 2210060, 2873078, 5746156, 7182695, 14365390, 28730780]

約数ペア:

[(1, 28730780), (2, 14365390), (4, 7182695), (5, 5746156), (10, 2873078), (13, 2210060), (20, 1436539), (26, 1105030), (52, 552515), (65, 442012), (130, 221006), (260, 110503)]