209723990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{761}}^1$

素因数の和:933

約数の個数: 64

約数和(自身を含む): 449445888

約数和(自身を除く): 239721898

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 127, 155, 217, 254, 310, 434, 635, 761, 889, 1085, 1270, 1522, 1778, 2170, 3805, 3937, 4445, 5327, 7610, 7874, 8890, 10654, 19685, 23591, 26635, 27559, 39370, 47182, 53270, 55118, 96647, 117955, 137795, 165137, 193294, 235910, 275590, 330274, 483235, 676529, 825685, 966470, 1353058, 1651370, 2996057, 3382645, 5992114, 6765290, 14980285, 20972399, 29960570, 41944798, 104861995, 209723990]

約数ペア:

[(1, 209723990), (2, 104861995), (5, 41944798), (7, 29960570), (10, 20972399), (14, 14980285), (31, 6765290), (35, 5992114), (62, 3382645), (70, 2996057), (127, 1651370), (155, 1353058), (217, 966470), (254, 825685), (310, 676529), (434, 483235), (635, 330274), (761, 275590), (889, 235910), (1085, 193294), (1270, 165137), (1522, 137795), (1778, 117955), (2170, 96647), (3805, 55118), (3937, 53270), (4445, 47182), (5327, 39370), (7610, 27559), (7874, 26635), (8890, 23591), (10654, 19685)]