20127140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{8317}}^1$

素因数の和:8348

約数の個数: 36

約数和(自身を含む): 46464348

約数和(自身を除く): 26337208

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 8317, 16634, 33268, 41585, 83170, 91487, 166340, 182974, 365948, 457435, 914870, 1006357, 1829740, 2012714, 4025428, 5031785, 10063570, 20127140]

約数ペア:

[(1, 20127140), (2, 10063570), (4, 5031785), (5, 4025428), (10, 2012714), (11, 1829740), (20, 1006357), (22, 914870), (44, 457435), (55, 365948), (110, 182974), (121, 166340), (220, 91487), (242, 83170), (484, 41585), (605, 33268), (1210, 16634), (2420, 8317)]