207821905

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{227}}^1\times {\mathrm{419}}^1$

素因数の和:693

約数の個数: 32

約数和(自身を含む): 275788800

約数和(自身を除く): 67966895

約数列:

[1, 5, 19, 23, 95, 115, 227, 419, 437, 1135, 2095, 2185, 4313, 5221, 7961, 9637, 21565, 26105, 39805, 48185, 95113, 99199, 183103, 475565, 495995, 915515, 1807147, 2187599, 9035735, 10937995, 41564381, 207821905]

約数ペア:

[(1, 207821905), (5, 41564381), (19, 10937995), (23, 9035735), (95, 2187599), (115, 1807147), (227, 915515), (419, 495995), (437, 475565), (1135, 183103), (2095, 99199), (2185, 95113), (4313, 48185), (5221, 39805), (7961, 26105), (9637, 21565)]