20145560

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{7517}}^1$

素因数の和:7595

約数の個数: 32

約数和(自身を含む): 46010160

約数和(自身を除く): 25864600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 7517, 15034, 30068, 37585, 60136, 75170, 150340, 300680, 503639, 1007278, 2014556, 2518195, 4029112, 5036390, 10072780, 20145560]

約数ペア:

[(1, 20145560), (2, 10072780), (4, 5036390), (5, 4029112), (8, 2518195), (10, 2014556), (20, 1007278), (40, 503639), (67, 300680), (134, 150340), (268, 75170), (335, 60136), (536, 37585), (670, 30068), (1340, 15034), (2680, 7517)]