28713788

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{5639}}^1$

素因数の和:5729

約数の個数: 24

約数和(自身を含む): 53692800

約数和(自身を除く): 24979012

約数列:

[1, 2, 4, 19, 38, 67, 76, 134, 268, 1273, 2546, 5092, 5639, 11278, 22556, 107141, 214282, 377813, 428564, 755626, 1511252, 7178447, 14356894, 28713788]

約数ペア:

[(1, 28713788), (2, 14356894), (4, 7178447), (19, 1511252), (38, 755626), (67, 428564), (76, 377813), (134, 214282), (268, 107141), (1273, 22556), (2546, 11278), (5092, 5639)]