666357984

素因数分解:

$2^5\times 3^2\times {\mathrm{109}}^1\times {\mathrm{21227}}^1$

素因数の和:21352

約数の個数: 72

約数和(自身を含む): 1912430520

約数和(自身を除く): 1246072536

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 109, 144, 218, 288, 327, 436, 654, 872, 981, 1308, 1744, 1962, 2616, 3488, 3924, 5232, 7848, 10464, 15696, 21227, 31392, 42454, 63681, 84908, 127362, 169816, 191043, 254724, 339632, 382086, 509448, 679264, 764172, 1018896, 1528344, 2037792, 2313743, 3056688, 4627486, 6113376, 6941229, 9254972, 13882458, 18509944, 20823687, 27764916, 37019888, 41647374, 55529832, 74039776, 83294748, 111059664, 166589496, 222119328, 333178992, 666357984]

約数ペア:

[(1, 666357984), (2, 333178992), (3, 222119328), (4, 166589496), (6, 111059664), (8, 83294748), (9, 74039776), (12, 55529832), (16, 41647374), (18, 37019888), (24, 27764916), (32, 20823687), (36, 18509944), (48, 13882458), (72, 9254972), (96, 6941229), (109, 6113376), (144, 4627486), (218, 3056688), (288, 2313743), (327, 2037792), (436, 1528344), (654, 1018896), (872, 764172), (981, 679264), (1308, 509448), (1744, 382086), (1962, 339632), (2616, 254724), (3488, 191043), (3924, 169816), (5232, 127362), (7848, 84908), (10464, 63681), (15696, 42454), (21227, 31392)]