2011307980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{887}}^1\times {\mathrm{937}}^1$

素因数の和:1855

約数の個数: 72

約数和(自身を含む): 4652825184

約数和(自身を除く): 2641517204

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 887, 937, 1210, 1774, 1874, 2420, 3548, 3748, 4435, 4685, 8870, 9370, 9757, 10307, 17740, 18740, 19514, 20614, 39028, 41228, 48785, 51535, 97570, 103070, 107327, 113377, 195140, 206140, 214654, 226754, 429308, 453508, 536635, 566885, 831119, 1073270, 1133770, 1662238, 2146540, 2267540, 3324476, 4155595, 8311190, 9142309, 16622380, 18284618, 36569236, 45711545, 91423090, 100565399, 182846180, 201130798, 402261596, 502826995, 1005653990, 2011307980]

約数ペア:

[(1, 2011307980), (2, 1005653990), (4, 502826995), (5, 402261596), (10, 201130798), (11, 182846180), (20, 100565399), (22, 91423090), (44, 45711545), (55, 36569236), (110, 18284618), (121, 16622380), (220, 9142309), (242, 8311190), (484, 4155595), (605, 3324476), (887, 2267540), (937, 2146540), (1210, 1662238), (1774, 1133770), (1874, 1073270), (2420, 831119), (3548, 566885), (3748, 536635), (4435, 453508), (4685, 429308), (8870, 226754), (9370, 214654), (9757, 206140), (10307, 195140), (17740, 113377), (18740, 107327), (19514, 103070), (20614, 97570), (39028, 51535), (41228, 48785)]