18915744760

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{42990329}}^1$

素因数の和:42990351

約数の個数: 32

約数和(自身を含む): 46429556400

約数和(自身を除く): 27513811640

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 42990329, 85980658, 171961316, 214951645, 343922632, 429903290, 472893619, 859806580, 945787238, 1719613160, 1891574476, 2364468095, 3783148952, 4728936190, 9457872380, 18915744760]

約数ペア:

[(1, 18915744760), (2, 9457872380), (4, 4728936190), (5, 3783148952), (8, 2364468095), (10, 1891574476), (11, 1719613160), (20, 945787238), (22, 859806580), (40, 472893619), (44, 429903290), (55, 343922632), (88, 214951645), (110, 171961316), (220, 85980658), (440, 42990329)]