9894820

素因数分解:

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

素因数の和:2044

約数の個数: 48

約数和(自身を含む): 23567040

約数和(自身を除く): 13672220

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2003, 2470, 4006, 4940, 8012, 10015, 20030, 26039, 38057, 40060, 52078, 76114, 104156, 130195, 152228, 190285, 260390, 380570, 494741, 520780, 761140, 989482, 1978964, 2473705, 4947410, 9894820]

約数ペア:

[(1, 9894820), (2, 4947410), (4, 2473705), (5, 1978964), (10, 989482), (13, 761140), (19, 520780), (20, 494741), (26, 380570), (38, 260390), (52, 190285), (65, 152228), (76, 130195), (95, 104156), (130, 76114), (190, 52078), (247, 40060), (260, 38057), (380, 26039), (494, 20030), (988, 10015), (1235, 8012), (2003, 4940), (2470, 4006)]