1209665920

素因数分解:

$2^7\times 5^1\times {\mathrm{1890103}}^1$

素因数の和:1890122

約数の個数: 32

約数和(自身を含む): 2891859120

約数和(自身を除く): 1682193200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 1890103, 3780206, 7560412, 9450515, 15120824, 18901030, 30241648, 37802060, 60483296, 75604120, 120966592, 151208240, 241933184, 302416480, 604832960, 1209665920]

約数ペア:

[(1, 1209665920), (2, 604832960), (4, 302416480), (5, 241933184), (8, 151208240), (10, 120966592), (16, 75604120), (20, 60483296), (32, 37802060), (40, 30241648), (64, 18901030), (80, 15120824), (128, 9450515), (160, 7560412), (320, 3780206), (640, 1890103)]