128632660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{2003}}^1$

素因数の和:2057

約数の個数: 72

約数和(自身を含む): 308054880

約数和(自身を除く): 179422220

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 169, 190, 247, 260, 338, 380, 494, 676, 845, 988, 1235, 1690, 2003, 2470, 3211, 3380, 4006, 4940, 6422, 8012, 10015, 12844, 16055, 20030, 26039, 32110, 38057, 40060, 52078, 64220, 76114, 104156, 130195, 152228, 190285, 260390, 338507, 380570, 494741, 520780, 677014, 761140, 989482, 1354028, 1692535, 1978964, 2473705, 3385070, 4947410, 6431633, 6770140, 9894820, 12863266, 25726532, 32158165, 64316330, 128632660]

約数ペア:

[(1, 128632660), (2, 64316330), (4, 32158165), (5, 25726532), (10, 12863266), (13, 9894820), (19, 6770140), (20, 6431633), (26, 4947410), (38, 3385070), (52, 2473705), (65, 1978964), (76, 1692535), (95, 1354028), (130, 989482), (169, 761140), (190, 677014), (247, 520780), (260, 494741), (338, 380570), (380, 338507), (494, 260390), (676, 190285), (845, 152228), (988, 130195), (1235, 104156), (1690, 76114), (2003, 64220), (2470, 52078), (3211, 40060), (3380, 38057), (4006, 32110), (4940, 26039), (6422, 20030), (8012, 16055), (10015, 12844)]