28049480

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{1627}}^1$

素因数の和:2069

約数の個数: 32

約数和(自身を含む): 63296640

約数和(自身を除く): 35247160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 862, 1627, 1724, 2155, 3254, 3448, 4310, 6508, 8135, 8620, 13016, 16270, 17240, 32540, 65080, 701237, 1402474, 2804948, 3506185, 5609896, 7012370, 14024740, 28049480]

約数ペア:

[(1, 28049480), (2, 14024740), (4, 7012370), (5, 5609896), (8, 3506185), (10, 2804948), (20, 1402474), (40, 701237), (431, 65080), (862, 32540), (1627, 17240), (1724, 16270), (2155, 13016), (3254, 8620), (3448, 8135), (4310, 6508)]