139663880

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1\times {\mathrm{311}}^1$

素因数の和:534

約数の個数: 64

約数和(自身を含む): 321235200

約数和(自身を除く): 181571320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 109, 206, 218, 311, 412, 436, 515, 545, 622, 824, 872, 1030, 1090, 1244, 1555, 2060, 2180, 2488, 3110, 4120, 4360, 6220, 11227, 12440, 22454, 32033, 33899, 44908, 56135, 64066, 67798, 89816, 112270, 128132, 135596, 160165, 169495, 224540, 256264, 271192, 320330, 338990, 449080, 640660, 677980, 1281320, 1355960, 3491597, 6983194, 13966388, 17457985, 27932776, 34915970, 69831940, 139663880]

約数ペア:

[(1, 139663880), (2, 69831940), (4, 34915970), (5, 27932776), (8, 17457985), (10, 13966388), (20, 6983194), (40, 3491597), (103, 1355960), (109, 1281320), (206, 677980), (218, 640660), (311, 449080), (412, 338990), (436, 320330), (515, 271192), (545, 256264), (622, 224540), (824, 169495), (872, 160165), (1030, 135596), (1090, 128132), (1244, 112270), (1555, 89816), (2060, 67798), (2180, 64066), (2488, 56135), (3110, 44908), (4120, 33899), (4360, 32033), (6220, 22454), (11227, 12440)]