20470900

素因数分解:

$2^2\times 5^2\times {\mathrm{269}}^1\times {\mathrm{761}}^1$

素因数の和:1044

約数の個数: 36

約数和(自身を含む): 44645580

約数和(自身を除く): 24174680

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 269, 538, 761, 1076, 1345, 1522, 2690, 3044, 3805, 5380, 6725, 7610, 13450, 15220, 19025, 26900, 38050, 76100, 204709, 409418, 818836, 1023545, 2047090, 4094180, 5117725, 10235450, 20470900]

約数ペア:

[(1, 20470900), (2, 10235450), (4, 5117725), (5, 4094180), (10, 2047090), (20, 1023545), (25, 818836), (50, 409418), (100, 204709), (269, 76100), (538, 38050), (761, 26900), (1076, 19025), (1345, 15220), (1522, 13450), (2690, 7610), (3044, 6725), (3805, 5380)]