401921280

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{251}}^1$

素因数の和:417

約数の個数: 216

約数和(自身を含む): 1406190240

約数和(自身を除く): 1004268960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 139, 144, 160, 180, 192, 240, 251, 256, 278, 288, 320, 360, 384, 417, 480, 502, 556, 576, 640, 695, 720, 753, 768, 834, 960, 1004, 1112, 1152, 1251, 1255, 1280, 1390, 1440, 1506, 1668, 1920, 2008, 2085, 2224, 2259, 2304, 2502, 2510, 2780, 2880, 3012, 3336, 3765, 3840, 4016, 4170, 4448, 4518, 5004, 5020, 5560, 5760, 6024, 6255, 6672, 7530, 8032, 8340, 8896, 9036, 10008, 10040, 11120, 11295, 11520, 12048, 12510, 13344, 15060, 16064, 16680, 17792, 18072, 20016, 20080, 22240, 22590, 24096, 25020, 26688, 30120, 32128, 33360, 34889, 35584, 36144, 40032, 40160, 44480, 45180, 48192, 50040, 53376, 60240, 64256, 66720, 69778, 72288, 80064, 80320, 88960, 90360, 96384, 100080, 104667, 106752, 120480, 133440, 139556, 144576, 160128, 160640, 174445, 177920, 180720, 192768, 200160, 209334, 240960, 266880, 279112, 289152, 314001, 320256, 321280, 348890, 361440, 400320, 418668, 481920, 523335, 533760, 558224, 578304, 628002, 697780, 722880, 800640, 837336, 963840, 1046670, 1116448, 1256004, 1395560, 1445760, 1570005, 1601280, 1674672, 2093340, 2232896, 2512008, 2791120, 2891520, 3140010, 3349344, 4186680, 4465792, 5024016, 5582240, 6280020, 6698688, 8373360, 8931584, 10048032, 11164480, 12560040, 13397376, 16746720, 20096064, 22328960, 25120080, 26794752, 33493440, 40192128, 44657920, 50240160, 66986880, 80384256, 100480320, 133973760, 200960640, 401921280]

約数ペア:

[(1, 401921280), (2, 200960640), (3, 133973760), (4, 100480320), (5, 80384256), (6, 66986880), (8, 50240160), (9, 44657920), (10, 40192128), (12, 33493440), (15, 26794752), (16, 25120080), (18, 22328960), (20, 20096064), (24, 16746720), (30, 13397376), (32, 12560040), (36, 11164480), (40, 10048032), (45, 8931584), (48, 8373360), (60, 6698688), (64, 6280020), (72, 5582240), (80, 5024016), (90, 4465792), (96, 4186680), (120, 3349344), (128, 3140010), (139, 2891520), (144, 2791120), (160, 2512008), (180, 2232896), (192, 2093340), (240, 1674672), (251, 1601280), (256, 1570005), (278, 1445760), (288, 1395560), (320, 1256004), (360, 1116448), (384, 1046670), (417, 963840), (480, 837336), (502, 800640), (556, 722880), (576, 697780), (640, 628002), (695, 578304), (720, 558224), (753, 533760), (768, 523335), (834, 481920), (960, 418668), (1004, 400320), (1112, 361440), (1152, 348890), (1251, 321280), (1255, 320256), (1280, 314001), (1390, 289152), (1440, 279112), (1506, 266880), (1668, 240960), (1920, 209334), (2008, 200160), (2085, 192768), (2224, 180720), (2259, 177920), (2304, 174445), (2502, 160640), (2510, 160128), (2780, 144576), (2880, 139556), (3012, 133440), (3336, 120480), (3765, 106752), (3840, 104667), (4016, 100080), (4170, 96384), (4448, 90360), (4518, 88960), (5004, 80320), (5020, 80064), (5560, 72288), (5760, 69778), (6024, 66720), (6255, 64256), (6672, 60240), (7530, 53376), (8032, 50040), (8340, 48192), (8896, 45180), (9036, 44480), (10008, 40160), (10040, 40032), (11120, 36144), (11295, 35584), (11520, 34889), (12048, 33360), (12510, 32128), (13344, 30120), (15060, 26688), (16064, 25020), (16680, 24096), (17792, 22590), (18072, 22240), (20016, 20080)]