1086820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{1109}}^1$

素因数の和:1132

約数の個数: 36

約数和(自身を含む): 2657340

約数和(自身を除く): 1570520

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 1109, 2218, 4436, 5545, 7763, 11090, 15526, 22180, 31052, 38815, 54341, 77630, 108682, 155260, 217364, 271705, 543410, 1086820]

約数ペア:

[(1, 1086820), (2, 543410), (4, 271705), (5, 217364), (7, 155260), (10, 108682), (14, 77630), (20, 54341), (28, 38815), (35, 31052), (49, 22180), (70, 15526), (98, 11090), (140, 7763), (196, 5545), (245, 4436), (490, 2218), (980, 1109)]