19540980

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{36187}}^1$

素因数の和:36205

約数の個数: 48

約数和(自身を含む): 60795840

約数和(自身を除く): 41254860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 36187, 72374, 108561, 144748, 180935, 217122, 325683, 361870, 434244, 542805, 651366, 723740, 977049, 1085610, 1302732, 1628415, 1954098, 2171220, 3256830, 3908196, 4885245, 6513660, 9770490, 19540980]

約数ペア:

[(1, 19540980), (2, 9770490), (3, 6513660), (4, 4885245), (5, 3908196), (6, 3256830), (9, 2171220), (10, 1954098), (12, 1628415), (15, 1302732), (18, 1085610), (20, 977049), (27, 723740), (30, 651366), (36, 542805), (45, 434244), (54, 361870), (60, 325683), (90, 217122), (108, 180935), (135, 144748), (180, 108561), (270, 72374), (540, 36187)]