772518140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{9811}}^1$

素因数の和:9978

約数の個数: 48

約数和(自身を含む): 1687977984

約数和(自身を除く): 915459844

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 127, 155, 254, 310, 508, 620, 635, 1270, 2540, 3937, 7874, 9811, 15748, 19622, 19685, 39244, 39370, 49055, 78740, 98110, 196220, 304141, 608282, 1216564, 1245997, 1520705, 2491994, 3041410, 4983988, 6082820, 6229985, 12459970, 24919940, 38625907, 77251814, 154503628, 193129535, 386259070, 772518140]

約数ペア:

[(1, 772518140), (2, 386259070), (4, 193129535), (5, 154503628), (10, 77251814), (20, 38625907), (31, 24919940), (62, 12459970), (124, 6229985), (127, 6082820), (155, 4983988), (254, 3041410), (310, 2491994), (508, 1520705), (620, 1245997), (635, 1216564), (1270, 608282), (2540, 304141), (3937, 196220), (7874, 98110), (9811, 78740), (15748, 49055), (19622, 39370), (19685, 39244)]