638403585

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{21059}}^1$

素因数の和:21157

約数の個数: 32

約数和(自身を含む): 1067489280

約数和(自身を除く): 429085695

約数列:

[1, 3, 5, 15, 43, 47, 129, 141, 215, 235, 645, 705, 2021, 6063, 10105, 21059, 30315, 63177, 105295, 315885, 905537, 989773, 2716611, 2969319, 4527685, 4948865, 13583055, 14846595, 42560239, 127680717, 212801195, 638403585]

約数ペア:

[(1, 638403585), (3, 212801195), (5, 127680717), (15, 42560239), (43, 14846595), (47, 13583055), (129, 4948865), (141, 4527685), (215, 2969319), (235, 2716611), (645, 989773), (705, 905537), (2021, 315885), (6063, 105295), (10105, 63177), (21059, 30315)]