15757720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{607}}^1$

素因数の和:688

約数の個数: 64

約数和(自身を含む): 39398400

約数和(自身を除く): 23640680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 59, 88, 110, 118, 220, 236, 295, 440, 472, 590, 607, 649, 1180, 1214, 1298, 2360, 2428, 2596, 3035, 3245, 4856, 5192, 6070, 6490, 6677, 12140, 12980, 13354, 24280, 25960, 26708, 33385, 35813, 53416, 66770, 71626, 133540, 143252, 179065, 267080, 286504, 358130, 393943, 716260, 787886, 1432520, 1575772, 1969715, 3151544, 3939430, 7878860, 15757720]

約数ペア:

[(1, 15757720), (2, 7878860), (4, 3939430), (5, 3151544), (8, 1969715), (10, 1575772), (11, 1432520), (20, 787886), (22, 716260), (40, 393943), (44, 358130), (55, 286504), (59, 267080), (88, 179065), (110, 143252), (118, 133540), (220, 71626), (236, 66770), (295, 53416), (440, 35813), (472, 33385), (590, 26708), (607, 25960), (649, 24280), (1180, 13354), (1214, 12980), (1298, 12140), (2360, 6677), (2428, 6490), (2596, 6070), (3035, 5192), (3245, 4856)]