51127340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{571}}^1$

素因数の和:639

約数の個数: 72

約数和(自身を含む): 121417296

約数和(自身を除く): 70289956

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 121, 148, 185, 220, 242, 370, 407, 484, 571, 605, 740, 814, 1142, 1210, 1628, 2035, 2284, 2420, 2855, 4070, 4477, 5710, 6281, 8140, 8954, 11420, 12562, 17908, 21127, 22385, 25124, 31405, 42254, 44770, 62810, 69091, 84508, 89540, 105635, 125620, 138182, 211270, 232397, 276364, 345455, 422540, 464794, 690910, 929588, 1161985, 1381820, 2323970, 2556367, 4647940, 5112734, 10225468, 12781835, 25563670, 51127340]

約数ペア:

[(1, 51127340), (2, 25563670), (4, 12781835), (5, 10225468), (10, 5112734), (11, 4647940), (20, 2556367), (22, 2323970), (37, 1381820), (44, 1161985), (55, 929588), (74, 690910), (110, 464794), (121, 422540), (148, 345455), (185, 276364), (220, 232397), (242, 211270), (370, 138182), (407, 125620), (484, 105635), (571, 89540), (605, 84508), (740, 69091), (814, 62810), (1142, 44770), (1210, 42254), (1628, 31405), (2035, 25124), (2284, 22385), (2420, 21127), (2855, 17908), (4070, 12562), (4477, 11420), (5710, 8954), (6281, 8140)]