18474520

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{467}}^1$

素因数の和:544

約数の個数: 64

約数和(自身を含む): 44478720

約数和(自身を除く): 26004200

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 43, 46, 86, 92, 115, 172, 184, 215, 230, 344, 430, 460, 467, 860, 920, 934, 989, 1720, 1868, 1978, 2335, 3736, 3956, 4670, 4945, 7912, 9340, 9890, 10741, 18680, 19780, 20081, 21482, 39560, 40162, 42964, 53705, 80324, 85928, 100405, 107410, 160648, 200810, 214820, 401620, 429640, 461863, 803240, 923726, 1847452, 2309315, 3694904, 4618630, 9237260, 18474520]

約数ペア:

[(1, 18474520), (2, 9237260), (4, 4618630), (5, 3694904), (8, 2309315), (10, 1847452), (20, 923726), (23, 803240), (40, 461863), (43, 429640), (46, 401620), (86, 214820), (92, 200810), (115, 160648), (172, 107410), (184, 100405), (215, 85928), (230, 80324), (344, 53705), (430, 42964), (460, 40162), (467, 39560), (860, 21482), (920, 20081), (934, 19780), (989, 18680), (1720, 10741), (1868, 9890), (1978, 9340), (2335, 7912), (3736, 4945), (3956, 4670)]