86991340

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{106087}}^1$

素因数の和:106137

約数の個数: 24

約数和(自身を含む): 187139232

約数和(自身を除く): 100147892

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 106087, 212174, 424348, 530435, 1060870, 2121740, 4349567, 8699134, 17398268, 21747835, 43495670, 86991340]

約数ペア:

[(1, 86991340), (2, 43495670), (4, 21747835), (5, 17398268), (10, 8699134), (20, 4349567), (41, 2121740), (82, 1060870), (164, 530435), (205, 424348), (410, 212174), (820, 106087)]