28471220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{34721}}^1$

素因数の和:34771

約数の個数: 24

約数和(自身を含む): 61249608

約数和(自身を除く): 32778388

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 34721, 69442, 138884, 173605, 347210, 694420, 1423561, 2847122, 5694244, 7117805, 14235610, 28471220]

約数ペア:

[(1, 28471220), (2, 14235610), (4, 7117805), (5, 5694244), (10, 2847122), (20, 1423561), (41, 694420), (82, 347210), (164, 173605), (205, 138884), (410, 69442), (820, 34721)]