201680464

素因数分解:

$2^4\times {\mathrm{809}}^1\times {\mathrm{15581}}^1$

素因数の和:16398

約数の個数: 20

約数和(自身を含む): 391264020

約数和(自身を除く): 189583556

約数列:

[1, 2, 4, 8, 16, 809, 1618, 3236, 6472, 12944, 15581, 31162, 62324, 124648, 249296, 12605029, 25210058, 50420116, 100840232, 201680464]

約数ペア:

[(1, 201680464), (2, 100840232), (4, 50420116), (8, 25210058), (16, 12605029), (809, 249296), (1618, 124648), (3236, 62324), (6472, 31162), (12944, 15581)]