809372230

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{21149}}^1$

素因数の和:21288

約数の個数: 32

約数和(自身を含む): 1507572000

約数和(自身を除く): 698199770

約数列:

[1, 2, 5, 10, 43, 86, 89, 178, 215, 430, 445, 890, 3827, 7654, 19135, 21149, 38270, 42298, 105745, 211490, 909407, 1818814, 1882261, 3764522, 4547035, 9094070, 9411305, 18822610, 80937223, 161874446, 404686115, 809372230]

約数ペア:

[(1, 809372230), (2, 404686115), (5, 161874446), (10, 80937223), (43, 18822610), (86, 9411305), (89, 9094070), (178, 4547035), (215, 3764522), (430, 1882261), (445, 1818814), (890, 909407), (3827, 211490), (7654, 105745), (19135, 42298), (21149, 38270)]