321672960

素因数分解:

$2^8\times 3^2\times 5^1\times 7^1\times {\mathrm{3989}}^1$

素因数の和:4023

約数の個数: 216

約数和(自身を含む): 1272267360

約数和(自身を除く): 950594400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 256, 280, 288, 315, 320, 336, 360, 384, 420, 448, 480, 504, 560, 576, 630, 640, 672, 720, 768, 840, 896, 960, 1008, 1120, 1152, 1260, 1280, 1344, 1440, 1680, 1792, 1920, 2016, 2240, 2304, 2520, 2688, 2880, 3360, 3840, 3989, 4032, 4480, 5040, 5376, 5760, 6720, 7978, 8064, 8960, 10080, 11520, 11967, 13440, 15956, 16128, 19945, 20160, 23934, 26880, 27923, 31912, 35901, 39890, 40320, 47868, 55846, 59835, 63824, 71802, 79780, 80640, 83769, 95736, 111692, 119670, 127648, 139615, 143604, 159560, 167538, 179505, 191472, 223384, 239340, 251307, 255296, 279230, 287208, 319120, 335076, 359010, 382944, 418845, 446768, 478680, 502614, 510592, 558460, 574416, 638240, 670152, 718020, 765888, 837690, 893536, 957360, 1005228, 1021184, 1116920, 1148832, 1256535, 1276480, 1340304, 1436040, 1531776, 1675380, 1787072, 1914720, 2010456, 2233840, 2297664, 2513070, 2552960, 2680608, 2872080, 3063552, 3350760, 3574144, 3829440, 4020912, 4467680, 4595328, 5026140, 5105920, 5361216, 5744160, 6701520, 7148288, 7658880, 8041824, 8935360, 9190656, 10052280, 10722432, 11488320, 13403040, 15317760, 16083648, 17870720, 20104560, 21444864, 22976640, 26806080, 32167296, 35741440, 40209120, 45953280, 53612160, 64334592, 80418240, 107224320, 160836480, 321672960]

約数ペア:

[(1, 321672960), (2, 160836480), (3, 107224320), (4, 80418240), (5, 64334592), (6, 53612160), (7, 45953280), (8, 40209120), (9, 35741440), (10, 32167296), (12, 26806080), (14, 22976640), (15, 21444864), (16, 20104560), (18, 17870720), (20, 16083648), (21, 15317760), (24, 13403040), (28, 11488320), (30, 10722432), (32, 10052280), (35, 9190656), (36, 8935360), (40, 8041824), (42, 7658880), (45, 7148288), (48, 6701520), (56, 5744160), (60, 5361216), (63, 5105920), (64, 5026140), (70, 4595328), (72, 4467680), (80, 4020912), (84, 3829440), (90, 3574144), (96, 3350760), (105, 3063552), (112, 2872080), (120, 2680608), (126, 2552960), (128, 2513070), (140, 2297664), (144, 2233840), (160, 2010456), (168, 1914720), (180, 1787072), (192, 1675380), (210, 1531776), (224, 1436040), (240, 1340304), (252, 1276480), (256, 1256535), (280, 1148832), (288, 1116920), (315, 1021184), (320, 1005228), (336, 957360), (360, 893536), (384, 837690), (420, 765888), (448, 718020), (480, 670152), (504, 638240), (560, 574416), (576, 558460), (630, 510592), (640, 502614), (672, 478680), (720, 446768), (768, 418845), (840, 382944), (896, 359010), (960, 335076), (1008, 319120), (1120, 287208), (1152, 279230), (1260, 255296), (1280, 251307), (1344, 239340), (1440, 223384), (1680, 191472), (1792, 179505), (1920, 167538), (2016, 159560), (2240, 143604), (2304, 139615), (2520, 127648), (2688, 119670), (2880, 111692), (3360, 95736), (3840, 83769), (3989, 80640), (4032, 79780), (4480, 71802), (5040, 63824), (5376, 59835), (5760, 55846), (6720, 47868), (7978, 40320), (8064, 39890), (8960, 35901), (10080, 31912), (11520, 27923), (11967, 26880), (13440, 23934), (15956, 20160), (16128, 19945)]