25191980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2663}}^1$

素因数の和:2726

約数の個数: 48

約数和(自身を含む): 59076864

約数和(自身を除く): 33884884

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1892, 2365, 2663, 4730, 5326, 9460, 10652, 13315, 26630, 29293, 53260, 58586, 114509, 117172, 146465, 229018, 292930, 458036, 572545, 585860, 1145090, 1259599, 2290180, 2519198, 5038396, 6297995, 12595990, 25191980]

約数ペア:

[(1, 25191980), (2, 12595990), (4, 6297995), (5, 5038396), (10, 2519198), (11, 2290180), (20, 1259599), (22, 1145090), (43, 585860), (44, 572545), (55, 458036), (86, 292930), (110, 229018), (172, 146465), (215, 117172), (220, 114509), (430, 58586), (473, 53260), (860, 29293), (946, 26630), (1892, 13315), (2365, 10652), (2663, 9460), (4730, 5326)]