494220220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{73}}^1\times {\mathrm{2003}}^1$

素因数の和:2111

約数の個数: 72

約数和(自身を含む): 1139803056

約数和(自身を除く): 645582836

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 73, 130, 146, 169, 260, 292, 338, 365, 676, 730, 845, 949, 1460, 1690, 1898, 2003, 3380, 3796, 4006, 4745, 8012, 9490, 10015, 12337, 18980, 20030, 24674, 26039, 40060, 49348, 52078, 61685, 104156, 123370, 130195, 146219, 246740, 260390, 292438, 338507, 520780, 584876, 677014, 731095, 1354028, 1462190, 1692535, 1900847, 2924380, 3385070, 3801694, 6770140, 7603388, 9504235, 19008470, 24711011, 38016940, 49422022, 98844044, 123555055, 247110110, 494220220]

約数ペア:

[(1, 494220220), (2, 247110110), (4, 123555055), (5, 98844044), (10, 49422022), (13, 38016940), (20, 24711011), (26, 19008470), (52, 9504235), (65, 7603388), (73, 6770140), (130, 3801694), (146, 3385070), (169, 2924380), (260, 1900847), (292, 1692535), (338, 1462190), (365, 1354028), (676, 731095), (730, 677014), (845, 584876), (949, 520780), (1460, 338507), (1690, 292438), (1898, 260390), (2003, 246740), (3380, 146219), (3796, 130195), (4006, 123370), (4745, 104156), (8012, 61685), (9490, 52078), (10015, 49348), (12337, 40060), (18980, 26039), (20030, 24674)]