189640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{431}}^1$

素因数の和:453

約数の個数: 32

約数和(自身を含む): 466560

約数和(自身を除く): 276920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 431, 440, 862, 1724, 2155, 3448, 4310, 4741, 8620, 9482, 17240, 18964, 23705, 37928, 47410, 94820, 189640]

約数ペア:

[(1, 189640), (2, 94820), (4, 47410), (5, 37928), (8, 23705), (10, 18964), (11, 17240), (20, 9482), (22, 8620), (40, 4741), (44, 4310), (55, 3448), (88, 2155), (110, 1724), (220, 862), (431, 440)]