25747820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{521}}^1$

素因数の和:890

約数の個数: 48

約数和(自身を含む): 62088768

約数和(自身を除く): 36340948

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 353, 521, 706, 1042, 1412, 1765, 2084, 2471, 2605, 3530, 3647, 4942, 5210, 7060, 7294, 9884, 10420, 12355, 14588, 18235, 24710, 36470, 49420, 72940, 183913, 367826, 735652, 919565, 1287391, 1839130, 2574782, 3678260, 5149564, 6436955, 12873910, 25747820]

約数ペア:

[(1, 25747820), (2, 12873910), (4, 6436955), (5, 5149564), (7, 3678260), (10, 2574782), (14, 1839130), (20, 1287391), (28, 919565), (35, 735652), (70, 367826), (140, 183913), (353, 72940), (521, 49420), (706, 36470), (1042, 24710), (1412, 18235), (1765, 14588), (2084, 12355), (2471, 10420), (2605, 9884), (3530, 7294), (3647, 7060), (4942, 5210)]