25001564

素因数分解:

$2^2\times 7^2\times {\mathrm{199}}^1\times {\mathrm{641}}^1$

素因数の和:858

約数の個数: 36

約数和(自身を含む): 51231600

約数和(自身を除く): 26230036

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 199, 398, 641, 796, 1282, 1393, 2564, 2786, 4487, 5572, 8974, 9751, 17948, 19502, 31409, 39004, 62818, 125636, 127559, 255118, 510236, 892913, 1785826, 3571652, 6250391, 12500782, 25001564]

約数ペア:

[(1, 25001564), (2, 12500782), (4, 6250391), (7, 3571652), (14, 1785826), (28, 892913), (49, 510236), (98, 255118), (196, 127559), (199, 125636), (398, 62818), (641, 39004), (796, 31409), (1282, 19502), (1393, 17948), (2564, 9751), (2786, 8974), (4487, 5572)]