66420480

素因数分解:

$2^8\times 3^1\times 5^1\times 7^2\times {\mathrm{353}}^1$

素因数の和:391

約数の個数: 216

約数和(自身を含む): 247462992

約数和(自身を除く): 181042512

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 64, 70, 80, 84, 96, 98, 105, 112, 120, 128, 140, 147, 160, 168, 192, 196, 210, 224, 240, 245, 256, 280, 294, 320, 336, 353, 384, 392, 420, 448, 480, 490, 560, 588, 640, 672, 706, 735, 768, 784, 840, 896, 960, 980, 1059, 1120, 1176, 1280, 1344, 1412, 1470, 1568, 1680, 1765, 1792, 1920, 1960, 2118, 2240, 2352, 2471, 2688, 2824, 2940, 3136, 3360, 3530, 3840, 3920, 4236, 4480, 4704, 4942, 5295, 5376, 5648, 5880, 6272, 6720, 7060, 7413, 7840, 8472, 8960, 9408, 9884, 10590, 11296, 11760, 12355, 12544, 13440, 14120, 14826, 15680, 16944, 17297, 18816, 19768, 21180, 22592, 23520, 24710, 26880, 28240, 29652, 31360, 33888, 34594, 37065, 37632, 39536, 42360, 45184, 47040, 49420, 51891, 56480, 59304, 62720, 67776, 69188, 74130, 79072, 84720, 86485, 90368, 94080, 98840, 103782, 112960, 118608, 135552, 138376, 148260, 158144, 169440, 172970, 188160, 197680, 207564, 225920, 237216, 259455, 271104, 276752, 296520, 316288, 338880, 345940, 395360, 415128, 451840, 474432, 518910, 553504, 593040, 632576, 677760, 691880, 790720, 830256, 948864, 1037820, 1107008, 1186080, 1355520, 1383760, 1581440, 1660512, 1897728, 2075640, 2214016, 2372160, 2767520, 3162880, 3321024, 4151280, 4428032, 4744320, 5535040, 6642048, 8302560, 9488640, 11070080, 13284096, 16605120, 22140160, 33210240, 66420480]

約数ペア:

[(1, 66420480), (2, 33210240), (3, 22140160), (4, 16605120), (5, 13284096), (6, 11070080), (7, 9488640), (8, 8302560), (10, 6642048), (12, 5535040), (14, 4744320), (15, 4428032), (16, 4151280), (20, 3321024), (21, 3162880), (24, 2767520), (28, 2372160), (30, 2214016), (32, 2075640), (35, 1897728), (40, 1660512), (42, 1581440), (48, 1383760), (49, 1355520), (56, 1186080), (60, 1107008), (64, 1037820), (70, 948864), (80, 830256), (84, 790720), (96, 691880), (98, 677760), (105, 632576), (112, 593040), (120, 553504), (128, 518910), (140, 474432), (147, 451840), (160, 415128), (168, 395360), (192, 345940), (196, 338880), (210, 316288), (224, 296520), (240, 276752), (245, 271104), (256, 259455), (280, 237216), (294, 225920), (320, 207564), (336, 197680), (353, 188160), (384, 172970), (392, 169440), (420, 158144), (448, 148260), (480, 138376), (490, 135552), (560, 118608), (588, 112960), (640, 103782), (672, 98840), (706, 94080), (735, 90368), (768, 86485), (784, 84720), (840, 79072), (896, 74130), (960, 69188), (980, 67776), (1059, 62720), (1120, 59304), (1176, 56480), (1280, 51891), (1344, 49420), (1412, 47040), (1470, 45184), (1568, 42360), (1680, 39536), (1765, 37632), (1792, 37065), (1920, 34594), (1960, 33888), (2118, 31360), (2240, 29652), (2352, 28240), (2471, 26880), (2688, 24710), (2824, 23520), (2940, 22592), (3136, 21180), (3360, 19768), (3530, 18816), (3840, 17297), (3920, 16944), (4236, 15680), (4480, 14826), (4704, 14120), (4942, 13440), (5295, 12544), (5376, 12355), (5648, 11760), (5880, 11296), (6272, 10590), (6720, 9884), (7060, 9408), (7413, 8960), (7840, 8472)]