20511380

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{15307}}^1$

素因数の和:15383

約数の個数: 24

約数和(自身を含む): 43719648

約数和(自身を除く): 23208268

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 15307, 30614, 61228, 76535, 153070, 306140, 1025569, 2051138, 4102276, 5127845, 10255690, 20511380]

約数ペア:

[(1, 20511380), (2, 10255690), (4, 5127845), (5, 4102276), (10, 2051138), (20, 1025569), (67, 306140), (134, 153070), (268, 76535), (335, 61228), (670, 30614), (1340, 15307)]