20744605

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{193}}^1$

素因数の和:325

約数の個数: 32

約数和(自身を含む): 29723904

約数和(自身を除く): 8979299

約数列:

[1, 5, 7, 35, 37, 83, 185, 193, 259, 415, 581, 965, 1295, 1351, 2905, 3071, 6755, 7141, 15355, 16019, 21497, 35705, 49987, 80095, 107485, 112133, 249935, 560665, 592703, 2963515, 4148921, 20744605]

約数ペア:

[(1, 20744605), (5, 4148921), (7, 2963515), (35, 592703), (37, 560665), (83, 249935), (185, 112133), (193, 107485), (259, 80095), (415, 49987), (581, 35705), (965, 21497), (1295, 16019), (1351, 15355), (2905, 7141), (3071, 6755)]