81660045

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{1163}}^1$

素因数の和:1353

約数の個数: 32

約数和(自身を含む): 135880704

約数和(自身を除く): 54220659

約数列:

[1, 3, 5, 15, 31, 93, 151, 155, 453, 465, 755, 1163, 2265, 3489, 4681, 5815, 14043, 17445, 23405, 36053, 70215, 108159, 175613, 180265, 526839, 540795, 878065, 2634195, 5444003, 16332009, 27220015, 81660045]

約数ペア:

[(1, 81660045), (3, 27220015), (5, 16332009), (15, 5444003), (31, 2634195), (93, 878065), (151, 540795), (155, 526839), (453, 180265), (465, 175613), (755, 108159), (1163, 70215), (2265, 36053), (3489, 23405), (4681, 17445), (5815, 14043)]