20280960

素因数分解:

$2^7\times 3^2\times 5^1\times 7^1\times {\mathrm{503}}^1$

素因数の和:535

約数の個数: 192

約数和(自身を含む): 80196480

約数和(自身を除く): 59915520

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, 280, 288, 315, 320, 336, 360, 384, 420, 448, 480, 503, 504, 560, 576, 630, 640, 672, 720, 840, 896, 960, 1006, 1008, 1120, 1152, 1260, 1344, 1440, 1509, 1680, 1920, 2012, 2016, 2240, 2515, 2520, 2688, 2880, 3018, 3360, 3521, 4024, 4032, 4480, 4527, 5030, 5040, 5760, 6036, 6720, 7042, 7545, 8048, 8064, 9054, 10060, 10080, 10563, 12072, 13440, 14084, 15090, 16096, 17605, 18108, 20120, 20160, 21126, 22635, 24144, 28168, 30180, 31689, 32192, 35210, 36216, 40240, 40320, 42252, 45270, 48288, 52815, 56336, 60360, 63378, 64384, 70420, 72432, 80480, 84504, 90540, 96576, 105630, 112672, 120720, 126756, 140840, 144864, 158445, 160960, 169008, 181080, 193152, 211260, 225344, 241440, 253512, 281680, 289728, 316890, 321920, 338016, 362160, 422520, 450688, 482880, 507024, 563360, 579456, 633780, 676032, 724320, 845040, 965760, 1014048, 1126720, 1267560, 1352064, 1448640, 1690080, 2028096, 2253440, 2535120, 2897280, 3380160, 4056192, 5070240, 6760320, 10140480, 20280960]

約数ペア:

[(1, 20280960), (2, 10140480), (3, 6760320), (4, 5070240), (5, 4056192), (6, 3380160), (7, 2897280), (8, 2535120), (9, 2253440), (10, 2028096), (12, 1690080), (14, 1448640), (15, 1352064), (16, 1267560), (18, 1126720), (20, 1014048), (21, 965760), (24, 845040), (28, 724320), (30, 676032), (32, 633780), (35, 579456), (36, 563360), (40, 507024), (42, 482880), (45, 450688), (48, 422520), (56, 362160), (60, 338016), (63, 321920), (64, 316890), (70, 289728), (72, 281680), (80, 253512), (84, 241440), (90, 225344), (96, 211260), (105, 193152), (112, 181080), (120, 169008), (126, 160960), (128, 158445), (140, 144864), (144, 140840), (160, 126756), (168, 120720), (180, 112672), (192, 105630), (210, 96576), (224, 90540), (240, 84504), (252, 80480), (280, 72432), (288, 70420), (315, 64384), (320, 63378), (336, 60360), (360, 56336), (384, 52815), (420, 48288), (448, 45270), (480, 42252), (503, 40320), (504, 40240), (560, 36216), (576, 35210), (630, 32192), (640, 31689), (672, 30180), (720, 28168), (840, 24144), (896, 22635), (960, 21126), (1006, 20160), (1008, 20120), (1120, 18108), (1152, 17605), (1260, 16096), (1344, 15090), (1440, 14084), (1509, 13440), (1680, 12072), (1920, 10563), (2012, 10080), (2016, 10060), (2240, 9054), (2515, 8064), (2520, 8048), (2688, 7545), (2880, 7042), (3018, 6720), (3360, 6036), (3521, 5760), (4024, 5040), (4032, 5030), (4480, 4527)]