217420280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{967}}^1$

素因数の和:1069

約数の個数: 128

約数和(自身を含む): 618900480

約数和(自身を除く): 401480200

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 73, 77, 88, 110, 140, 146, 154, 220, 280, 292, 308, 365, 385, 440, 511, 584, 616, 730, 770, 803, 967, 1022, 1460, 1540, 1606, 1934, 2044, 2555, 2920, 3080, 3212, 3868, 4015, 4088, 4835, 5110, 5621, 6424, 6769, 7736, 8030, 9670, 10220, 10637, 11242, 13538, 16060, 19340, 20440, 21274, 22484, 27076, 28105, 32120, 33845, 38680, 42548, 44968, 53185, 54152, 56210, 67690, 70591, 74459, 85096, 106370, 112420, 135380, 141182, 148918, 212740, 224840, 270760, 282364, 297836, 352955, 372295, 425480, 494137, 564728, 595672, 705910, 744590, 776501, 988274, 1411820, 1489180, 1553002, 1976548, 2470685, 2823640, 2978360, 3106004, 3882505, 3953096, 4941370, 5435507, 6212008, 7765010, 9882740, 10871014, 15530020, 19765480, 21742028, 27177535, 31060040, 43484056, 54355070, 108710140, 217420280]

約数ペア:

[(1, 217420280), (2, 108710140), (4, 54355070), (5, 43484056), (7, 31060040), (8, 27177535), (10, 21742028), (11, 19765480), (14, 15530020), (20, 10871014), (22, 9882740), (28, 7765010), (35, 6212008), (40, 5435507), (44, 4941370), (55, 3953096), (56, 3882505), (70, 3106004), (73, 2978360), (77, 2823640), (88, 2470685), (110, 1976548), (140, 1553002), (146, 1489180), (154, 1411820), (220, 988274), (280, 776501), (292, 744590), (308, 705910), (365, 595672), (385, 564728), (440, 494137), (511, 425480), (584, 372295), (616, 352955), (730, 297836), (770, 282364), (803, 270760), (967, 224840), (1022, 212740), (1460, 148918), (1540, 141182), (1606, 135380), (1934, 112420), (2044, 106370), (2555, 85096), (2920, 74459), (3080, 70591), (3212, 67690), (3868, 56210), (4015, 54152), (4088, 53185), (4835, 44968), (5110, 42548), (5621, 38680), (6424, 33845), (6769, 32120), (7736, 28105), (8030, 27076), (9670, 22484), (10220, 21274), (10637, 20440), (11242, 19340), (13538, 16060)]