80018743

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:271

約数の個数: 32

約数和(自身を含む): 98841600

約数和(自身を除く): 18822857

約数列:

[1, 7, 29, 43, 89, 103, 203, 301, 623, 721, 1247, 2581, 2987, 3827, 4429, 8729, 9167, 18067, 20909, 26789, 31003, 64169, 110983, 128441, 265843, 394181, 776881, 899087, 1860901, 2759267, 11431249, 80018743]

約数ペア:

[(1, 80018743), (7, 11431249), (29, 2759267), (43, 1860901), (89, 899087), (103, 776881), (203, 394181), (301, 265843), (623, 128441), (721, 110983), (1247, 64169), (2581, 31003), (2987, 26789), (3827, 20909), (4429, 18067), (8729, 9167)]