13054520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1$

素因数の和:312

約数の個数: 64

約数和(自身を含む): 31428000

約数和(自身を除く): 18373480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 89, 95, 152, 178, 190, 193, 356, 380, 386, 445, 712, 760, 772, 890, 965, 1544, 1691, 1780, 1930, 3382, 3560, 3667, 3860, 6764, 7334, 7720, 8455, 13528, 14668, 16910, 17177, 18335, 29336, 33820, 34354, 36670, 67640, 68708, 73340, 85885, 137416, 146680, 171770, 326363, 343540, 652726, 687080, 1305452, 1631815, 2610904, 3263630, 6527260, 13054520]

約数ペア:

[(1, 13054520), (2, 6527260), (4, 3263630), (5, 2610904), (8, 1631815), (10, 1305452), (19, 687080), (20, 652726), (38, 343540), (40, 326363), (76, 171770), (89, 146680), (95, 137416), (152, 85885), (178, 73340), (190, 68708), (193, 67640), (356, 36670), (380, 34354), (386, 33820), (445, 29336), (712, 18335), (760, 17177), (772, 16910), (890, 14668), (965, 13528), (1544, 8455), (1691, 7720), (1780, 7334), (1930, 6764), (3382, 3860), (3560, 3667)]