21874480

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{2153}}^1$

素因数の和:2293

約数の個数: 40

約数和(自身を含む): 51282432

約数和(自身を除く): 29407952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 2032, 2153, 2540, 4306, 5080, 8612, 10160, 10765, 17224, 21530, 34448, 43060, 86120, 172240, 273431, 546862, 1093724, 1367155, 2187448, 2734310, 4374896, 5468620, 10937240, 21874480]

約数ペア:

[(1, 21874480), (2, 10937240), (4, 5468620), (5, 4374896), (8, 2734310), (10, 2187448), (16, 1367155), (20, 1093724), (40, 546862), (80, 273431), (127, 172240), (254, 86120), (508, 43060), (635, 34448), (1016, 21530), (1270, 17224), (2032, 10765), (2153, 10160), (2540, 8612), (4306, 5080)]