668555425

素因数分解:

$5^2\times {\mathrm{61}}^1\times {\mathrm{199}}^1\times {\mathrm{2203}}^1$

素因数の和:2473

約数の個数: 24

約数和(自身を含む): 847217600

約数和(自身を除く): 178662175

約数列:

[1, 5, 25, 61, 199, 305, 995, 1525, 2203, 4975, 11015, 12139, 55075, 60695, 134383, 303475, 438397, 671915, 2191985, 3359575, 10959925, 26742217, 133711085, 668555425]

約数ペア:

[(1, 668555425), (5, 133711085), (25, 26742217), (61, 10959925), (199, 3359575), (305, 2191985), (995, 671915), (1525, 438397), (2203, 303475), (4975, 134383), (11015, 60695), (12139, 55075)]