20726090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{2447}}^1$

素因数の和:2483

約数の個数: 48

約数和(自身を含む): 46884096

約数和(自身を除く): 26158006

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 121, 154, 242, 385, 605, 770, 847, 1210, 1694, 2447, 4235, 4894, 8470, 12235, 17129, 24470, 26917, 34258, 53834, 85645, 134585, 171290, 188419, 269170, 296087, 376838, 592174, 942095, 1480435, 1884190, 2072609, 2960870, 4145218, 10363045, 20726090]

約数ペア:

[(1, 20726090), (2, 10363045), (5, 4145218), (7, 2960870), (10, 2072609), (11, 1884190), (14, 1480435), (22, 942095), (35, 592174), (55, 376838), (70, 296087), (77, 269170), (110, 188419), (121, 171290), (154, 134585), (242, 85645), (385, 53834), (605, 34258), (770, 26917), (847, 24470), (1210, 17129), (1694, 12235), (2447, 8470), (4235, 4894)]