18236900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{281}}^1$

素因数の和:365

約数の個数: 72

約数和(自身を含む): 44059680

約数和(自身を除く): 25822780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 59, 100, 110, 118, 220, 236, 275, 281, 295, 550, 562, 590, 649, 1100, 1124, 1180, 1298, 1405, 1475, 2596, 2810, 2950, 3091, 3245, 5620, 5900, 6182, 6490, 7025, 12364, 12980, 14050, 15455, 16225, 16579, 28100, 30910, 32450, 33158, 61820, 64900, 66316, 77275, 82895, 154550, 165790, 182369, 309100, 331580, 364738, 414475, 729476, 828950, 911845, 1657900, 1823690, 3647380, 4559225, 9118450, 18236900]

約数ペア:

[(1, 18236900), (2, 9118450), (4, 4559225), (5, 3647380), (10, 1823690), (11, 1657900), (20, 911845), (22, 828950), (25, 729476), (44, 414475), (50, 364738), (55, 331580), (59, 309100), (100, 182369), (110, 165790), (118, 154550), (220, 82895), (236, 77275), (275, 66316), (281, 64900), (295, 61820), (550, 33158), (562, 32450), (590, 30910), (649, 28100), (1100, 16579), (1124, 16225), (1180, 15455), (1298, 14050), (1405, 12980), (1475, 12364), (2596, 7025), (2810, 6490), (2950, 6182), (3091, 5900), (3245, 5620)]