20206980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{112261}}^1$

素因数の和:112276

約数の個数: 36

約数和(自身を含む): 61295052

約数和(自身を除く): 41088072

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 112261, 224522, 336783, 449044, 561305, 673566, 1010349, 1122610, 1347132, 1683915, 2020698, 2245220, 3367830, 4041396, 5051745, 6735660, 10103490, 20206980]

約数ペア:

[(1, 20206980), (2, 10103490), (3, 6735660), (4, 5051745), (5, 4041396), (6, 3367830), (9, 2245220), (10, 2020698), (12, 1683915), (15, 1347132), (18, 1122610), (20, 1010349), (30, 673566), (36, 561305), (45, 449044), (60, 336783), (90, 224522), (180, 112261)]