18688450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{3089}}^1$

素因数の和:3123

約数の個数: 36

約数和(自身を含む): 38220210

約数和(自身を除く): 19531760

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 121, 242, 275, 550, 605, 1210, 3025, 3089, 6050, 6178, 15445, 30890, 33979, 67958, 77225, 154450, 169895, 339790, 373769, 747538, 849475, 1698950, 1868845, 3737690, 9344225, 18688450]

約数ペア:

[(1, 18688450), (2, 9344225), (5, 3737690), (10, 1868845), (11, 1698950), (22, 849475), (25, 747538), (50, 373769), (55, 339790), (110, 169895), (121, 154450), (242, 77225), (275, 67958), (550, 33979), (605, 30890), (1210, 15445), (3025, 6178), (3089, 6050)]