764890

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{223}}^1$

素因数の和:251

約数の個数: 32

約数和(自身を含む): 1612800

約数和(自身を除く): 847910

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 223, 245, 343, 446, 490, 686, 1115, 1561, 1715, 2230, 3122, 3430, 7805, 10927, 15610, 21854, 54635, 76489, 109270, 152978, 382445, 764890]

約数ペア:

[(1, 764890), (2, 382445), (5, 152978), (7, 109270), (10, 76489), (14, 54635), (35, 21854), (49, 15610), (70, 10927), (98, 7805), (223, 3430), (245, 3122), (343, 2230), (446, 1715), (490, 1561), (686, 1115)]