55345880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{409}}^1$

素因数の和:636

約数の個数: 64

約数和(自身を含む): 132840000

約数和(自身を除く): 77494120

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 199, 340, 398, 409, 680, 796, 818, 995, 1592, 1636, 1990, 2045, 3272, 3383, 3980, 4090, 6766, 6953, 7960, 8180, 13532, 13906, 16360, 16915, 27064, 27812, 33830, 34765, 55624, 67660, 69530, 81391, 135320, 139060, 162782, 278120, 325564, 406955, 651128, 813910, 1383647, 1627820, 2767294, 3255640, 5534588, 6918235, 11069176, 13836470, 27672940, 55345880]

約数ペア:

[(1, 55345880), (2, 27672940), (4, 13836470), (5, 11069176), (8, 6918235), (10, 5534588), (17, 3255640), (20, 2767294), (34, 1627820), (40, 1383647), (68, 813910), (85, 651128), (136, 406955), (170, 325564), (199, 278120), (340, 162782), (398, 139060), (409, 135320), (680, 81391), (796, 69530), (818, 67660), (995, 55624), (1592, 34765), (1636, 33830), (1990, 27812), (2045, 27064), (3272, 16915), (3383, 16360), (3980, 13906), (4090, 13532), (6766, 8180), (6953, 7960)]