89485780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{1789}}^1$

素因数の和:1900

約数の個数: 48

約数和(自身を含む): 195768720

約数和(自身を除く): 106282940

約数列:

[1, 2, 4, 5, 10, 20, 41, 61, 82, 122, 164, 205, 244, 305, 410, 610, 820, 1220, 1789, 2501, 3578, 5002, 7156, 8945, 10004, 12505, 17890, 25010, 35780, 50020, 73349, 109129, 146698, 218258, 293396, 366745, 436516, 545645, 733490, 1091290, 1466980, 2182580, 4474289, 8948578, 17897156, 22371445, 44742890, 89485780]

約数ペア:

[(1, 89485780), (2, 44742890), (4, 22371445), (5, 17897156), (10, 8948578), (20, 4474289), (41, 2182580), (61, 1466980), (82, 1091290), (122, 733490), (164, 545645), (205, 436516), (244, 366745), (305, 293396), (410, 218258), (610, 146698), (820, 109129), (1220, 73349), (1789, 50020), (2501, 35780), (3578, 25010), (5002, 17890), (7156, 12505), (8945, 10004)]