20136428920

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4618447}}^1$

素因数の和:4618567

約数の個数: 32

約数和(自身を含む): 45722635200

約数和(自身を除く): 25586206280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 4618447, 9236894, 18473788, 23092235, 36947576, 46184470, 92368940, 184737880, 503410723, 1006821446, 2013642892, 2517053615, 4027285784, 5034107230, 10068214460, 20136428920]

約数ペア:

[(1, 20136428920), (2, 10068214460), (4, 5034107230), (5, 4027285784), (8, 2517053615), (10, 2013642892), (20, 1006821446), (40, 503410723), (109, 184737880), (218, 92368940), (436, 46184470), (545, 36947576), (872, 23092235), (1090, 18473788), (2180, 9236894), (4360, 4618447)]