251018540

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{2753}}^1$

素因数の和:2906

約数の個数: 48

約数和(自身を含む): 544102272

約数和(自身を除く): 293083732

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 97, 188, 194, 235, 388, 470, 485, 940, 970, 1940, 2753, 4559, 5506, 9118, 11012, 13765, 18236, 22795, 27530, 45590, 55060, 91180, 129391, 258782, 267041, 517564, 534082, 646955, 1068164, 1293910, 1335205, 2587820, 2670410, 5340820, 12550927, 25101854, 50203708, 62754635, 125509270, 251018540]

約数ペア:

[(1, 251018540), (2, 125509270), (4, 62754635), (5, 50203708), (10, 25101854), (20, 12550927), (47, 5340820), (94, 2670410), (97, 2587820), (188, 1335205), (194, 1293910), (235, 1068164), (388, 646955), (470, 534082), (485, 517564), (940, 267041), (970, 258782), (1940, 129391), (2753, 91180), (4559, 55060), (5506, 45590), (9118, 27530), (11012, 22795), (13765, 18236)]