210020140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{25801}}^1$

素因数の和:25858

約数の個数: 48

約数和(自身を含む): 494159904

約数和(自身を除く): 284139764

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 370, 407, 740, 814, 1628, 2035, 4070, 8140, 25801, 51602, 103204, 129005, 258010, 283811, 516020, 567622, 954637, 1135244, 1419055, 1909274, 2838110, 3818548, 4773185, 5676220, 9546370, 10501007, 19092740, 21002014, 42004028, 52505035, 105010070, 210020140]

約数ペア:

[(1, 210020140), (2, 105010070), (4, 52505035), (5, 42004028), (10, 21002014), (11, 19092740), (20, 10501007), (22, 9546370), (37, 5676220), (44, 4773185), (55, 3818548), (74, 2838110), (110, 1909274), (148, 1419055), (185, 1135244), (220, 954637), (370, 567622), (407, 516020), (740, 283811), (814, 258010), (1628, 129005), (2035, 103204), (4070, 51602), (8140, 25801)]