131400520

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{14731}}^1$

素因数の和:14965

約数の個数: 32

約数和(自身を含む): 296997120

約数和(自身を除く): 165596600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 4460, 8920, 14731, 29462, 58924, 73655, 117848, 147310, 294620, 589240, 3285013, 6570026, 13140052, 16425065, 26280104, 32850130, 65700260, 131400520]

約数ペア:

[(1, 131400520), (2, 65700260), (4, 32850130), (5, 26280104), (8, 16425065), (10, 13140052), (20, 6570026), (40, 3285013), (223, 589240), (446, 294620), (892, 147310), (1115, 117848), (1784, 73655), (2230, 58924), (4460, 29462), (8920, 14731)]