20710980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{115061}}^1$

素因数の和:115076

約数の個数: 36

約数和(自身を含む): 62823852

約数和(自身を除く): 42112872

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 115061, 230122, 345183, 460244, 575305, 690366, 1035549, 1150610, 1380732, 1725915, 2071098, 2301220, 3451830, 4142196, 5177745, 6903660, 10355490, 20710980]

約数ペア:

[(1, 20710980), (2, 10355490), (3, 6903660), (4, 5177745), (5, 4142196), (6, 3451830), (9, 2301220), (10, 2071098), (12, 1725915), (15, 1380732), (18, 1150610), (20, 1035549), (30, 690366), (36, 575305), (45, 460244), (60, 345183), (90, 230122), (180, 115061)]