19805490

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{337}}^1\times {\mathrm{653}}^1$

素因数の和:1003

約数の個数: 48

約数和(自身を含む): 51726168

約数和(自身を除く): 31920678

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 337, 653, 674, 1011, 1306, 1685, 1959, 2022, 3033, 3265, 3370, 3918, 5055, 5877, 6066, 6530, 9795, 10110, 11754, 15165, 19590, 29385, 30330, 58770, 220061, 440122, 660183, 1100305, 1320366, 1980549, 2200610, 3300915, 3961098, 6601830, 9902745, 19805490]

約数ペア:

[(1, 19805490), (2, 9902745), (3, 6601830), (5, 3961098), (6, 3300915), (9, 2200610), (10, 1980549), (15, 1320366), (18, 1100305), (30, 660183), (45, 440122), (90, 220061), (337, 58770), (653, 30330), (674, 29385), (1011, 19590), (1306, 15165), (1685, 11754), (1959, 10110), (2022, 9795), (3033, 6530), (3265, 6066), (3370, 5877), (3918, 5055)]