211883980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137587}}^1$

素因数の和:137614

約数の個数: 48

約数和(自身を含む): 554754816

約数和(自身を除く): 342870836

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, 137587, 275174, 550348, 687935, 963109, 1375870, 1513457, 1926218, 2751740, 3026914, 3852436, 4815545, 6053828, 7567285, 9631090, 10594199, 15134570, 19262180, 21188398, 30269140, 42376796, 52970995, 105941990, 211883980]

約数ペア:

[(1, 211883980), (2, 105941990), (4, 52970995), (5, 42376796), (7, 30269140), (10, 21188398), (11, 19262180), (14, 15134570), (20, 10594199), (22, 9631090), (28, 7567285), (35, 6053828), (44, 4815545), (55, 3852436), (70, 3026914), (77, 2751740), (110, 1926218), (140, 1513457), (154, 1375870), (220, 963109), (308, 687935), (385, 550348), (770, 275174), (1540, 137587)]