18544120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{643}}^1$

素因数の和:764

約数の個数: 64

約数和(自身を含む): 48222720

約数和(自身を除く): 29678600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 103, 140, 206, 280, 412, 515, 643, 721, 824, 1030, 1286, 1442, 2060, 2572, 2884, 3215, 3605, 4120, 4501, 5144, 5768, 6430, 7210, 9002, 12860, 14420, 18004, 22505, 25720, 28840, 36008, 45010, 66229, 90020, 132458, 180040, 264916, 331145, 463603, 529832, 662290, 927206, 1324580, 1854412, 2318015, 2649160, 3708824, 4636030, 9272060, 18544120]

約数ペア:

[(1, 18544120), (2, 9272060), (4, 4636030), (5, 3708824), (7, 2649160), (8, 2318015), (10, 1854412), (14, 1324580), (20, 927206), (28, 662290), (35, 529832), (40, 463603), (56, 331145), (70, 264916), (103, 180040), (140, 132458), (206, 90020), (280, 66229), (412, 45010), (515, 36008), (643, 28840), (721, 25720), (824, 22505), (1030, 18004), (1286, 14420), (1442, 12860), (2060, 9002), (2572, 7210), (2884, 6430), (3215, 5768), (3605, 5144), (4120, 4501)]