19472380

素因数分解:

$2^2\times 5^1\times {\mathrm{691}}^1\times {\mathrm{1409}}^1$

素因数の和:2109

約数の個数: 24

約数和(自身を含む): 40980240

約数和(自身を除く): 21507860

約数列:

[1, 2, 4, 5, 10, 20, 691, 1382, 1409, 2764, 2818, 3455, 5636, 6910, 7045, 13820, 14090, 28180, 973619, 1947238, 3894476, 4868095, 9736190, 19472380]

約数ペア:

[(1, 19472380), (2, 9736190), (4, 4868095), (5, 3894476), (10, 1947238), (20, 973619), (691, 28180), (1382, 14090), (1409, 13820), (2764, 7045), (2818, 6910), (3455, 5636)]