77196400

素因数分解:

$2^4\times 5^2\times {\mathrm{192991}}^1$

素因数の和:193009

約数の個数: 30

約数和(自身を含む): 185465312

約数和(自身を除く): 108268912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 192991, 385982, 771964, 964955, 1543928, 1929910, 3087856, 3859820, 4824775, 7719640, 9649550, 15439280, 19299100, 38598200, 77196400]

約数ペア:

[(1, 77196400), (2, 38598200), (4, 19299100), (5, 15439280), (8, 9649550), (10, 7719640), (16, 4824775), (20, 3859820), (25, 3087856), (40, 1929910), (50, 1543928), (80, 964955), (100, 771964), (200, 385982), (400, 192991)]