18869950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{3119}}^1$

素因数の和:3153

約数の個数: 36

約数和(自身を含む): 38591280

約数和(自身を除く): 19721330

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 121, 242, 275, 550, 605, 1210, 3025, 3119, 6050, 6238, 15595, 31190, 34309, 68618, 77975, 155950, 171545, 343090, 377399, 754798, 857725, 1715450, 1886995, 3773990, 9434975, 18869950]

約数ペア:

[(1, 18869950), (2, 9434975), (5, 3773990), (10, 1886995), (11, 1715450), (22, 857725), (25, 754798), (50, 377399), (55, 343090), (110, 171545), (121, 155950), (242, 77975), (275, 68618), (550, 34309), (605, 31190), (1210, 15595), (3025, 6238), (3119, 6050)]