28502380

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{34759}}^1$

素因数の和:34809

約数の個数: 24

約数和(自身を含む): 61316640

約数和(自身を除く): 32814260

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 34759, 69518, 139036, 173795, 347590, 695180, 1425119, 2850238, 5700476, 7125595, 14251190, 28502380]

約数ペア:

[(1, 28502380), (2, 14251190), (4, 7125595), (5, 5700476), (10, 2850238), (20, 1425119), (41, 695180), (82, 347590), (164, 173795), (205, 139036), (410, 69518), (820, 34759)]