19626340

素因数分解:

$2^2\times 5^1\times {\mathrm{809}}^1\times {\mathrm{1213}}^1$

素因数の和:2031

約数の個数: 24

約数和(自身を含む): 41300280

約数和(自身を除く): 21673940

約数列:

[1, 2, 4, 5, 10, 20, 809, 1213, 1618, 2426, 3236, 4045, 4852, 6065, 8090, 12130, 16180, 24260, 981317, 1962634, 3925268, 4906585, 9813170, 19626340]

約数ペア:

[(1, 19626340), (2, 9813170), (4, 4906585), (5, 3925268), (10, 1962634), (20, 981317), (809, 24260), (1213, 16180), (1618, 12130), (2426, 8090), (3236, 6065), (4045, 4852)]