81465590

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{1021}}^1$

素因数の和:1208

約数の個数: 32

約数和(自身を含む): 150111360

約数和(自身を除く): 68645770

約数列:

[1, 2, 5, 10, 79, 101, 158, 202, 395, 505, 790, 1010, 1021, 2042, 5105, 7979, 10210, 15958, 39895, 79790, 80659, 103121, 161318, 206242, 403295, 515605, 806590, 1031210, 8146559, 16293118, 40732795, 81465590]

約数ペア:

[(1, 81465590), (2, 40732795), (5, 16293118), (10, 8146559), (79, 1031210), (101, 806590), (158, 515605), (202, 403295), (395, 206242), (505, 161318), (790, 103121), (1010, 80659), (1021, 79790), (2042, 39895), (5105, 15958), (7979, 10210)]