12468920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{7603}}^1$

素因数の和:7655

約数の個数: 32

約数和(自身を含む): 28743120

約数和(自身を除く): 16274200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 7603, 15206, 30412, 38015, 60824, 76030, 152060, 304120, 311723, 623446, 1246892, 1558615, 2493784, 3117230, 6234460, 12468920]

約数ペア:

[(1, 12468920), (2, 6234460), (4, 3117230), (5, 2493784), (8, 1558615), (10, 1246892), (20, 623446), (40, 311723), (41, 304120), (82, 152060), (164, 76030), (205, 60824), (328, 38015), (410, 30412), (820, 15206), (1640, 7603)]