18237160

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{461}}^1$

素因数の和:538

約数の個数: 64

約数和(自身を含む): 43908480

約数和(自身を除く): 25671320

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 43, 46, 86, 92, 115, 172, 184, 215, 230, 344, 430, 460, 461, 860, 920, 922, 989, 1720, 1844, 1978, 2305, 3688, 3956, 4610, 4945, 7912, 9220, 9890, 10603, 18440, 19780, 19823, 21206, 39560, 39646, 42412, 53015, 79292, 84824, 99115, 106030, 158584, 198230, 212060, 396460, 424120, 455929, 792920, 911858, 1823716, 2279645, 3647432, 4559290, 9118580, 18237160]

約数ペア:

[(1, 18237160), (2, 9118580), (4, 4559290), (5, 3647432), (8, 2279645), (10, 1823716), (20, 911858), (23, 792920), (40, 455929), (43, 424120), (46, 396460), (86, 212060), (92, 198230), (115, 158584), (172, 106030), (184, 99115), (215, 84824), (230, 79292), (344, 53015), (430, 42412), (460, 39646), (461, 39560), (860, 21206), (920, 19823), (922, 19780), (989, 18440), (1720, 10603), (1844, 9890), (1978, 9220), (2305, 7912), (3688, 4945), (3956, 4610)]