12945440

素因数分解:

$2^5\times 5^1\times {\mathrm{80909}}^1$

素因数の和:80924

約数の個数: 24

約数和(自身を含む): 30583980

約数和(自身を除く): 17638540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 80909, 161818, 323636, 404545, 647272, 809090, 1294544, 1618180, 2589088, 3236360, 6472720, 12945440]

約数ペア:

[(1, 12945440), (2, 6472720), (4, 3236360), (5, 2589088), (8, 1618180), (10, 1294544), (16, 809090), (20, 647272), (32, 404545), (40, 323636), (80, 161818), (160, 80909)]