651880

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{379}}^1$

素因数の和:433

約数の個数: 32

約数和(自身を含む): 1504800

約数和(自身を除く): 852920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 379, 430, 758, 860, 1516, 1720, 1895, 3032, 3790, 7580, 15160, 16297, 32594, 65188, 81485, 130376, 162970, 325940, 651880]

約数ペア:

[(1, 651880), (2, 325940), (4, 162970), (5, 130376), (8, 81485), (10, 65188), (20, 32594), (40, 16297), (43, 15160), (86, 7580), (172, 3790), (215, 3032), (344, 1895), (379, 1720), (430, 1516), (758, 860)]