27672940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{409}}^1$

素因数の和:634

約数の個数: 48

約数和(自身を含む): 61992000

約数和(自身を除く): 34319060

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 199, 340, 398, 409, 796, 818, 995, 1636, 1990, 2045, 3383, 3980, 4090, 6766, 6953, 8180, 13532, 13906, 16915, 27812, 33830, 34765, 67660, 69530, 81391, 139060, 162782, 325564, 406955, 813910, 1383647, 1627820, 2767294, 5534588, 6918235, 13836470, 27672940]

約数ペア:

[(1, 27672940), (2, 13836470), (4, 6918235), (5, 5534588), (10, 2767294), (17, 1627820), (20, 1383647), (34, 813910), (68, 406955), (85, 325564), (170, 162782), (199, 139060), (340, 81391), (398, 69530), (409, 67660), (796, 34765), (818, 33830), (995, 27812), (1636, 16915), (1990, 13906), (2045, 13532), (3383, 8180), (3980, 6953), (4090, 6766)]