54682780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{397}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 117948096

約数和(自身を除く): 63265316

約数列:

[1, 2, 4, 5, 10, 20, 71, 97, 142, 194, 284, 355, 388, 397, 485, 710, 794, 970, 1420, 1588, 1940, 1985, 3970, 6887, 7940, 13774, 27548, 28187, 34435, 38509, 56374, 68870, 77018, 112748, 137740, 140935, 154036, 192545, 281870, 385090, 563740, 770180, 2734139, 5468278, 10936556, 13670695, 27341390, 54682780]

約数ペア:

[(1, 54682780), (2, 27341390), (4, 13670695), (5, 10936556), (10, 5468278), (20, 2734139), (71, 770180), (97, 563740), (142, 385090), (194, 281870), (284, 192545), (355, 154036), (388, 140935), (397, 137740), (485, 112748), (710, 77018), (794, 68870), (970, 56374), (1420, 38509), (1588, 34435), (1940, 28187), (1985, 27548), (3970, 13774), (6887, 7940)]