78217785

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{19979}}^1$

素因数の和:20022

約数の個数: 32

約数和(自身を含む): 143856000

約数和(自身を除く): 65638215

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 87, 135, 145, 261, 435, 783, 1305, 3915, 19979, 59937, 99895, 179811, 299685, 539433, 579391, 899055, 1738173, 2697165, 2896955, 5214519, 8690865, 15643557, 26072595, 78217785]

約数ペア:

[(1, 78217785), (3, 26072595), (5, 15643557), (9, 8690865), (15, 5214519), (27, 2896955), (29, 2697165), (45, 1738173), (87, 899055), (135, 579391), (145, 539433), (261, 299685), (435, 179811), (783, 99895), (1305, 59937), (3915, 19979)]