18203240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{3761}}^1$

素因数の和:3794

約数の個数: 48

約数和(自身を含む): 45031140

約数和(自身を除く): 26827900

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 3761, 4840, 7522, 15044, 18805, 30088, 37610, 41371, 75220, 82742, 150440, 165484, 206855, 330968, 413710, 455081, 827420, 910162, 1654840, 1820324, 2275405, 3640648, 4550810, 9101620, 18203240]

約数ペア:

[(1, 18203240), (2, 9101620), (4, 4550810), (5, 3640648), (8, 2275405), (10, 1820324), (11, 1654840), (20, 910162), (22, 827420), (40, 455081), (44, 413710), (55, 330968), (88, 206855), (110, 165484), (121, 150440), (220, 82742), (242, 75220), (440, 41371), (484, 37610), (605, 30088), (968, 18805), (1210, 15044), (2420, 7522), (3761, 4840)]