217156720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{246769}}^1$

素因数の和:246793

約数の個数: 40

約数和(自身を含む): 550790640

約数和(自身を除く): 333633920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 246769, 493538, 987076, 1233845, 1974152, 2467690, 2714459, 3948304, 4935380, 5428918, 9870760, 10857836, 13572295, 19741520, 21715672, 27144590, 43431344, 54289180, 108578360, 217156720]

約数ペア:

[(1, 217156720), (2, 108578360), (4, 54289180), (5, 43431344), (8, 27144590), (10, 21715672), (11, 19741520), (16, 13572295), (20, 10857836), (22, 9870760), (40, 5428918), (44, 4935380), (55, 3948304), (80, 2714459), (88, 2467690), (110, 1974152), (176, 1233845), (220, 987076), (440, 493538), (880, 246769)]