1081520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1229}}^1$

素因数の和:1253

約数の個数: 40

約数和(自身を含む): 2745360

約数和(自身を除く): 1663840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 1229, 2458, 4916, 6145, 9832, 12290, 13519, 19664, 24580, 27038, 49160, 54076, 67595, 98320, 108152, 135190, 216304, 270380, 540760, 1081520]

約数ペア:

[(1, 1081520), (2, 540760), (4, 270380), (5, 216304), (8, 135190), (10, 108152), (11, 98320), (16, 67595), (20, 54076), (22, 49160), (40, 27038), (44, 24580), (55, 19664), (80, 13519), (88, 12290), (110, 9832), (176, 6145), (220, 4916), (440, 2458), (880, 1229)]