51518540

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{281}}^1$

素因数の和:482

約数の個数: 48

約数和(自身を含む): 110859840

約数和(自身を除く): 59341300

約数列:

[1, 2, 4, 5, 10, 20, 89, 103, 178, 206, 281, 356, 412, 445, 515, 562, 890, 1030, 1124, 1405, 1780, 2060, 2810, 5620, 9167, 18334, 25009, 28943, 36668, 45835, 50018, 57886, 91670, 100036, 115772, 125045, 144715, 183340, 250090, 289430, 500180, 578860, 2575927, 5151854, 10303708, 12879635, 25759270, 51518540]

約数ペア:

[(1, 51518540), (2, 25759270), (4, 12879635), (5, 10303708), (10, 5151854), (20, 2575927), (89, 578860), (103, 500180), (178, 289430), (206, 250090), (281, 183340), (356, 144715), (412, 125045), (445, 115772), (515, 100036), (562, 91670), (890, 57886), (1030, 50018), (1124, 45835), (1405, 36668), (1780, 28943), (2060, 25009), (2810, 18334), (5620, 9167)]