20120773985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{142453}}^1$

素因数の和:142565

約数の個数: 32

約数和(自身を含む): 27139196448

約数和(自身を除く): 7018422463

約数列:

[1, 5, 13, 41, 53, 65, 205, 265, 533, 689, 2173, 2665, 3445, 10865, 28249, 141245, 142453, 712265, 1851889, 5840573, 7550009, 9259445, 29202865, 37750045, 75927449, 98150117, 309550369, 379637245, 490750585, 1547751845, 4024154797, 20120773985]

約数ペア:

[(1, 20120773985), (5, 4024154797), (13, 1547751845), (41, 490750585), (53, 379637245), (65, 309550369), (205, 98150117), (265, 75927449), (533, 37750045), (689, 29202865), (2173, 9259445), (2665, 7550009), (3445, 5840573), (10865, 1851889), (28249, 712265), (141245, 142453)]