288978860

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{140281}}^1$

素因数の和:140393

約数の個数: 24

約数和(自身を含む): 612751776

約数和(自身を除く): 323772916

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 140281, 280562, 561124, 701405, 1402810, 2805620, 14448943, 28897886, 57795772, 72244715, 144489430, 288978860]

約数ペア:

[(1, 288978860), (2, 144489430), (4, 72244715), (5, 57795772), (10, 28897886), (20, 14448943), (103, 2805620), (206, 1402810), (412, 701405), (515, 561124), (1030, 280562), (2060, 140281)]