20130770

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{127}}^1\times {\mathrm{131}}^1$

素因数の和:287

約数の個数: 48

約数和(自身を含む): 40449024

約数和(自身を除く): 20318254

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 127, 131, 242, 254, 262, 605, 635, 655, 1210, 1270, 1310, 1397, 1441, 2794, 2882, 6985, 7205, 13970, 14410, 15367, 15851, 16637, 30734, 31702, 33274, 76835, 79255, 83185, 153670, 158510, 166370, 183007, 366014, 915035, 1830070, 2013077, 4026154, 10065385, 20130770]

約数ペア:

[(1, 20130770), (2, 10065385), (5, 4026154), (10, 2013077), (11, 1830070), (22, 915035), (55, 366014), (110, 183007), (121, 166370), (127, 158510), (131, 153670), (242, 83185), (254, 79255), (262, 76835), (605, 33274), (635, 31702), (655, 30734), (1210, 16637), (1270, 15851), (1310, 15367), (1397, 14410), (1441, 13970), (2794, 7205), (2882, 6985)]