2740520

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{523}}^1$

素因数の和:665

約数の個数: 32

約数和(自身を含む): 6225120

約数和(自身を除く): 3484600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 523, 524, 655, 1046, 1048, 1310, 2092, 2615, 2620, 4184, 5230, 5240, 10460, 20920, 68513, 137026, 274052, 342565, 548104, 685130, 1370260, 2740520]

約数ペア:

[(1, 2740520), (2, 1370260), (4, 685130), (5, 548104), (8, 342565), (10, 274052), (20, 137026), (40, 68513), (131, 20920), (262, 10460), (523, 5240), (524, 5230), (655, 4184), (1046, 2620), (1048, 2615), (1310, 2092)]