20880780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{15131}}^1$

素因数の和:15166

約数の個数: 48

約数和(自身を含む): 61012224

約数和(自身を除く): 40131444

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 15131, 30262, 45393, 60524, 75655, 90786, 151310, 181572, 226965, 302620, 348013, 453930, 696026, 907860, 1044039, 1392052, 1740065, 2088078, 3480130, 4176156, 5220195, 6960260, 10440390, 20880780]

約数ペア:

[(1, 20880780), (2, 10440390), (3, 6960260), (4, 5220195), (5, 4176156), (6, 3480130), (10, 2088078), (12, 1740065), (15, 1392052), (20, 1044039), (23, 907860), (30, 696026), (46, 453930), (60, 348013), (69, 302620), (92, 226965), (115, 181572), (138, 151310), (230, 90786), (276, 75655), (345, 60524), (460, 45393), (690, 30262), (1380, 15131)]