257117280

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{1297}}^1$

素因数の和:1381

約数の個数: 192

約数和(自身を含む): 942036480

約数和(自身を除く): 684919200

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, 56, 59, 60, 70, 80, 84, 96, 105, 112, 118, 120, 140, 160, 168, 177, 210, 224, 236, 240, 280, 295, 336, 354, 413, 420, 472, 480, 560, 590, 672, 708, 826, 840, 885, 944, 1120, 1180, 1239, 1297, 1416, 1652, 1680, 1770, 1888, 2065, 2360, 2478, 2594, 2832, 3304, 3360, 3540, 3891, 4130, 4720, 4956, 5188, 5664, 6195, 6485, 6608, 7080, 7782, 8260, 9079, 9440, 9912, 10376, 12390, 12970, 13216, 14160, 15564, 16520, 18158, 19455, 19824, 20752, 24780, 25940, 27237, 28320, 31128, 33040, 36316, 38910, 39648, 41504, 45395, 49560, 51880, 54474, 62256, 66080, 72632, 76523, 77820, 90790, 99120, 103760, 108948, 124512, 136185, 145264, 153046, 155640, 181580, 198240, 207520, 217896, 229569, 272370, 290528, 306092, 311280, 363160, 382615, 435792, 459138, 535661, 544740, 612184, 622560, 726320, 765230, 871584, 918276, 1071322, 1089480, 1147845, 1224368, 1452640, 1530460, 1606983, 1836552, 2142644, 2178960, 2295690, 2448736, 2678305, 3060920, 3213966, 3673104, 4285288, 4357920, 4591380, 5356610, 6121840, 6427932, 7346208, 8034915, 8570576, 9182760, 10713220, 12243680, 12855864, 16069830, 17141152, 18365520, 21426440, 25711728, 32139660, 36731040, 42852880, 51423456, 64279320, 85705760, 128558640, 257117280]

約数ペア:

[(1, 257117280), (2, 128558640), (3, 85705760), (4, 64279320), (5, 51423456), (6, 42852880), (7, 36731040), (8, 32139660), (10, 25711728), (12, 21426440), (14, 18365520), (15, 17141152), (16, 16069830), (20, 12855864), (21, 12243680), (24, 10713220), (28, 9182760), (30, 8570576), (32, 8034915), (35, 7346208), (40, 6427932), (42, 6121840), (48, 5356610), (56, 4591380), (59, 4357920), (60, 4285288), (70, 3673104), (80, 3213966), (84, 3060920), (96, 2678305), (105, 2448736), (112, 2295690), (118, 2178960), (120, 2142644), (140, 1836552), (160, 1606983), (168, 1530460), (177, 1452640), (210, 1224368), (224, 1147845), (236, 1089480), (240, 1071322), (280, 918276), (295, 871584), (336, 765230), (354, 726320), (413, 622560), (420, 612184), (472, 544740), (480, 535661), (560, 459138), (590, 435792), (672, 382615), (708, 363160), (826, 311280), (840, 306092), (885, 290528), (944, 272370), (1120, 229569), (1180, 217896), (1239, 207520), (1297, 198240), (1416, 181580), (1652, 155640), (1680, 153046), (1770, 145264), (1888, 136185), (2065, 124512), (2360, 108948), (2478, 103760), (2594, 99120), (2832, 90790), (3304, 77820), (3360, 76523), (3540, 72632), (3891, 66080), (4130, 62256), (4720, 54474), (4956, 51880), (5188, 49560), (5664, 45395), (6195, 41504), (6485, 39648), (6608, 38910), (7080, 36316), (7782, 33040), (8260, 31128), (9079, 28320), (9440, 27237), (9912, 25940), (10376, 24780), (12390, 20752), (12970, 19824), (13216, 19455), (14160, 18158), (15564, 16520)]