1310980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 3084480

約数和(自身を除く): 1773500

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 59, 101, 110, 118, 202, 220, 236, 295, 404, 505, 590, 649, 1010, 1111, 1180, 1298, 2020, 2222, 2596, 3245, 4444, 5555, 5959, 6490, 11110, 11918, 12980, 22220, 23836, 29795, 59590, 65549, 119180, 131098, 262196, 327745, 655490, 1310980]

約数ペア:

[(1, 1310980), (2, 655490), (4, 327745), (5, 262196), (10, 131098), (11, 119180), (20, 65549), (22, 59590), (44, 29795), (55, 23836), (59, 22220), (101, 12980), (110, 11918), (118, 11110), (202, 6490), (220, 5959), (236, 5555), (295, 4444), (404, 3245), (505, 2596), (590, 2222), (649, 2020), (1010, 1298), (1111, 1180)]