81844945

素因数分解:

$5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{3671}}^1$

素因数の和:3710

約数の個数: 32

約数和(自身を含む): 123379200

約数和(自身を除く): 41534255

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 343, 455, 637, 1715, 3185, 3671, 4459, 18355, 22295, 25697, 47723, 128485, 179879, 238615, 334061, 899395, 1259153, 1670305, 2338427, 6295765, 11692135, 16368989, 81844945]

約数ペア:

[(1, 81844945), (5, 16368989), (7, 11692135), (13, 6295765), (35, 2338427), (49, 1670305), (65, 1259153), (91, 899395), (245, 334061), (343, 238615), (455, 179879), (637, 128485), (1715, 47723), (3185, 25697), (3671, 22295), (4459, 18355)]