213464140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{2711}}^1$

素因数の和:2878

約数の個数: 48

約数和(自身を含む): 466550784

約数和(自身を除く): 253086644

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 127, 155, 254, 310, 508, 620, 635, 1270, 2540, 2711, 3937, 5422, 7874, 10844, 13555, 15748, 19685, 27110, 39370, 54220, 78740, 84041, 168082, 336164, 344297, 420205, 688594, 840410, 1377188, 1680820, 1721485, 3442970, 6885940, 10673207, 21346414, 42692828, 53366035, 106732070, 213464140]

約数ペア:

[(1, 213464140), (2, 106732070), (4, 53366035), (5, 42692828), (10, 21346414), (20, 10673207), (31, 6885940), (62, 3442970), (124, 1721485), (127, 1680820), (155, 1377188), (254, 840410), (310, 688594), (508, 420205), (620, 344297), (635, 336164), (1270, 168082), (2540, 84041), (2711, 78740), (3937, 54220), (5422, 39370), (7874, 27110), (10844, 19685), (13555, 15748)]