20281608

素因数分解:

$2^3\times 3^2\times {\mathrm{101}}^1\times {\mathrm{2789}}^1$

素因数の和:2902

約数の個数: 48

約数和(自身を含む): 55493100

約数和(自身を除く): 35211492

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 101, 202, 303, 404, 606, 808, 909, 1212, 1818, 2424, 2789, 3636, 5578, 7272, 8367, 11156, 16734, 22312, 25101, 33468, 50202, 66936, 100404, 200808, 281689, 563378, 845067, 1126756, 1690134, 2253512, 2535201, 3380268, 5070402, 6760536, 10140804, 20281608]

約数ペア:

[(1, 20281608), (2, 10140804), (3, 6760536), (4, 5070402), (6, 3380268), (8, 2535201), (9, 2253512), (12, 1690134), (18, 1126756), (24, 845067), (36, 563378), (72, 281689), (101, 200808), (202, 100404), (303, 66936), (404, 50202), (606, 33468), (808, 25101), (909, 22312), (1212, 16734), (1818, 11156), (2424, 8367), (2789, 7272), (3636, 5578)]