217697780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{375341}}^1$

素因数の和:375379

約数の個数: 24

約数和(自身を含む): 472930920

約数和(自身を除く): 255233140

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 375341, 750682, 1501364, 1876705, 3753410, 7506820, 10884889, 21769778, 43539556, 54424445, 108848890, 217697780]

約数ペア:

[(1, 217697780), (2, 108848890), (4, 54424445), (5, 43539556), (10, 21769778), (20, 10884889), (29, 7506820), (58, 3753410), (116, 1876705), (145, 1501364), (290, 750682), (580, 375341)]