20578592160

素因数分解:

$2^5\times 3^3\times 5^1\times 7^1\times {\mathrm{680509}}^1$

素因数の和:680540

約数の個数: 192

約数和(自身を含む): 82314489600

約数和(自身を除く): 61735897440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 168, 180, 189, 210, 216, 224, 240, 252, 270, 280, 288, 315, 336, 360, 378, 420, 432, 480, 504, 540, 560, 630, 672, 720, 756, 840, 864, 945, 1008, 1080, 1120, 1260, 1440, 1512, 1680, 1890, 2016, 2160, 2520, 3024, 3360, 3780, 4320, 5040, 6048, 7560, 10080, 15120, 30240, 680509, 1361018, 2041527, 2722036, 3402545, 4083054, 4763563, 5444072, 6124581, 6805090, 8166108, 9527126, 10207635, 10888144, 12249162, 13610180, 14290689, 16332216, 18373743, 19054252, 20415270, 21776288, 23817815, 24498324, 27220360, 28581378, 30622905, 32664432, 36747486, 38108504, 40830540, 42872067, 47635630, 48996648, 54440720, 57162756, 61245810, 65328864, 71453445, 73494972, 76217008, 81661080, 85744134, 91868715, 95271260, 97993296, 108881440, 114325512, 122491620, 128616201, 142906890, 146989944, 152434016, 163322160, 171488268, 183737430, 190542520, 195986592, 214360335, 228651024, 244983240, 257232402, 285813780, 293979888, 326644320, 342976536, 367474860, 381085040, 428720670, 457302048, 489966480, 514464804, 571627560, 587959776, 643081005, 685953072, 734949720, 762170080, 857441340, 979932960, 1028929608, 1143255120, 1286162010, 1371906144, 1469899440, 1714882680, 2057859216, 2286510240, 2572324020, 2939798880, 3429765360, 4115718432, 5144648040, 6859530720, 10289296080, 20578592160]

約数ペア:

[(1, 20578592160), (2, 10289296080), (3, 6859530720), (4, 5144648040), (5, 4115718432), (6, 3429765360), (7, 2939798880), (8, 2572324020), (9, 2286510240), (10, 2057859216), (12, 1714882680), (14, 1469899440), (15, 1371906144), (16, 1286162010), (18, 1143255120), (20, 1028929608), (21, 979932960), (24, 857441340), (27, 762170080), (28, 734949720), (30, 685953072), (32, 643081005), (35, 587959776), (36, 571627560), (40, 514464804), (42, 489966480), (45, 457302048), (48, 428720670), (54, 381085040), (56, 367474860), (60, 342976536), (63, 326644320), (70, 293979888), (72, 285813780), (80, 257232402), (84, 244983240), (90, 228651024), (96, 214360335), (105, 195986592), (108, 190542520), (112, 183737430), (120, 171488268), (126, 163322160), (135, 152434016), (140, 146989944), (144, 142906890), (160, 128616201), (168, 122491620), (180, 114325512), (189, 108881440), (210, 97993296), (216, 95271260), (224, 91868715), (240, 85744134), (252, 81661080), (270, 76217008), (280, 73494972), (288, 71453445), (315, 65328864), (336, 61245810), (360, 57162756), (378, 54440720), (420, 48996648), (432, 47635630), (480, 42872067), (504, 40830540), (540, 38108504), (560, 36747486), (630, 32664432), (672, 30622905), (720, 28581378), (756, 27220360), (840, 24498324), (864, 23817815), (945, 21776288), (1008, 20415270), (1080, 19054252), (1120, 18373743), (1260, 16332216), (1440, 14290689), (1512, 13610180), (1680, 12249162), (1890, 10888144), (2016, 10207635), (2160, 9527126), (2520, 8166108), (3024, 6805090), (3360, 6124581), (3780, 5444072), (4320, 4763563), (5040, 4083054), (6048, 3402545), (7560, 2722036), (10080, 2041527), (15120, 1361018), (30240, 680509)]