218666140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{141991}}^1$

素因数の和:142018

約数の個数: 48

約数和(自身を含む): 572511744

約数和(自身を除く): 353845604

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 141991, 283982, 567964, 709955, 993937, 1419910, 1561901, 1987874, 2839820, 3123802, 3975748, 4969685, 6247604, 7809505, 9939370, 10933307, 15619010, 19878740, 21866614, 31238020, 43733228, 54666535, 109333070, 218666140]

約数ペア:

[(1, 218666140), (2, 109333070), (4, 54666535), (5, 43733228), (7, 31238020), (10, 21866614), (11, 19878740), (14, 15619010), (20, 10933307), (22, 9939370), (28, 7809505), (35, 6247604), (44, 4969685), (55, 3975748), (70, 3123802), (77, 2839820), (110, 1987874), (140, 1561901), (154, 1419910), (220, 993937), (308, 709955), (385, 567964), (770, 283982), (1540, 141991)]