161521920

素因数分解:

$2^8\times 3^2\times 5^1\times 7^1\times {\mathrm{2003}}^1$

素因数の和:2037

約数の個数: 216

約数和(自身を含む): 639003456

約数和(自身を除く): 477481536

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, 2003, 2016, 2240, 2304, 2520, 2688, 2880, 3360, 3840, 4006, 4032, 4480, 5040, 5376, 5760, 6009, 6720, 8012, 8064, 8960, 10015, 10080, 11520, 12018, 13440, 14021, 16024, 16128, 18027, 20030, 20160, 24036, 26880, 28042, 30045, 32048, 36054, 40060, 40320, 42063, 48072, 56084, 60090, 64096, 70105, 72108, 80120, 80640, 84126, 90135, 96144, 112168, 120180, 126189, 128192, 140210, 144216, 160240, 168252, 180270, 192288, 210315, 224336, 240360, 252378, 256384, 280420, 288432, 320480, 336504, 360540, 384576, 420630, 448672, 480720, 504756, 512768, 560840, 576864, 630945, 640960, 673008, 721080, 769152, 841260, 897344, 961440, 1009512, 1121680, 1153728, 1261890, 1281920, 1346016, 1442160, 1538304, 1682520, 1794688, 1922880, 2019024, 2243360, 2307456, 2523780, 2563840, 2692032, 2884320, 3365040, 3589376, 3845760, 4038048, 4486720, 4614912, 5047560, 5384064, 5768640, 6730080, 7691520, 8076096, 8973440, 10095120, 10768128, 11537280, 13460160, 16152192, 17946880, 20190240, 23074560, 26920320, 32304384, 40380480, 53840640, 80760960, 161521920]

約数ペア:

[(1, 161521920), (2, 80760960), (3, 53840640), (4, 40380480), (5, 32304384), (6, 26920320), (7, 23074560), (8, 20190240), (9, 17946880), (10, 16152192), (12, 13460160), (14, 11537280), (15, 10768128), (16, 10095120), (18, 8973440), (20, 8076096), (21, 7691520), (24, 6730080), (28, 5768640), (30, 5384064), (32, 5047560), (35, 4614912), (36, 4486720), (40, 4038048), (42, 3845760), (45, 3589376), (48, 3365040), (56, 2884320), (60, 2692032), (63, 2563840), (64, 2523780), (70, 2307456), (72, 2243360), (80, 2019024), (84, 1922880), (90, 1794688), (96, 1682520), (105, 1538304), (112, 1442160), (120, 1346016), (126, 1281920), (128, 1261890), (140, 1153728), (144, 1121680), (160, 1009512), (168, 961440), (180, 897344), (192, 841260), (210, 769152), (224, 721080), (240, 673008), (252, 640960), (256, 630945), (280, 576864), (288, 560840), (315, 512768), (320, 504756), (336, 480720), (360, 448672), (384, 420630), (420, 384576), (448, 360540), (480, 336504), (504, 320480), (560, 288432), (576, 280420), (630, 256384), (640, 252378), (672, 240360), (720, 224336), (768, 210315), (840, 192288), (896, 180270), (960, 168252), (1008, 160240), (1120, 144216), (1152, 140210), (1260, 128192), (1280, 126189), (1344, 120180), (1440, 112168), (1680, 96144), (1792, 90135), (1920, 84126), (2003, 80640), (2016, 80120), (2240, 72108), (2304, 70105), (2520, 64096), (2688, 60090), (2880, 56084), (3360, 48072), (3840, 42063), (4006, 40320), (4032, 40060), (4480, 36054), (5040, 32048), (5376, 30045), (5760, 28042), (6009, 26880), (6720, 24036), (8012, 20160), (8064, 20030), (8960, 18027), (10015, 16128), (10080, 16024), (11520, 14021), (12018, 13440)]