320635731

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1\times {\mathrm{647}}^1$

素因数の和:891

約数の個数: 32

約数和(自身を含む): 469421568

約数和(自身を除く): 148785837

約数列:

[1, 3, 13, 39, 97, 131, 291, 393, 647, 1261, 1703, 1941, 3783, 5109, 8411, 12707, 25233, 38121, 62759, 84757, 165191, 188277, 254271, 495573, 815867, 1101841, 2447601, 3305523, 8221429, 24664287, 106878577, 320635731]

約数ペア:

[(1, 320635731), (3, 106878577), (13, 24664287), (39, 8221429), (97, 3305523), (131, 2447601), (291, 1101841), (393, 815867), (647, 495573), (1261, 254271), (1703, 188277), (1941, 165191), (3783, 84757), (5109, 62759), (8411, 38121), (12707, 25233)]