20280715091

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{29959}}^1$

素因数の和:30195

約数の個数: 32

約数和(自身を含む): 25689861120

約数和(自身を除く): 5409146029

約数列:

[1, 7, 13, 43, 91, 173, 301, 559, 1211, 2249, 3913, 7439, 15743, 29959, 52073, 96707, 209713, 389467, 676949, 1288237, 2726269, 5182907, 9017659, 16747081, 36280349, 67377791, 117229567, 222865001, 471644537, 1560055007, 2897245013, 20280715091]

約数ペア:

[(1, 20280715091), (7, 2897245013), (13, 1560055007), (43, 471644537), (91, 222865001), (173, 117229567), (301, 67377791), (559, 36280349), (1211, 16747081), (2249, 9017659), (3913, 5182907), (7439, 2726269), (15743, 1288237), (29959, 676949), (52073, 389467), (96707, 209713)]