20511636480

素因数分解:

$2^{10}\times 3^4\times 5^1\times {\mathrm{49459}}^1$

素因数の和:49496

約数の個数: 220

約数和(自身を含む): 73503594120

約数和(自身を除く): 52991957640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 216, 240, 256, 270, 288, 320, 324, 360, 384, 405, 432, 480, 512, 540, 576, 640, 648, 720, 768, 810, 864, 960, 1024, 1080, 1152, 1280, 1296, 1440, 1536, 1620, 1728, 1920, 2160, 2304, 2560, 2592, 2880, 3072, 3240, 3456, 3840, 4320, 4608, 5120, 5184, 5760, 6480, 6912, 7680, 8640, 9216, 10368, 11520, 12960, 13824, 15360, 17280, 20736, 23040, 25920, 27648, 34560, 41472, 46080, 49459, 51840, 69120, 82944, 98918, 103680, 138240, 148377, 197836, 207360, 247295, 296754, 395672, 414720, 445131, 494590, 593508, 741885, 791344, 890262, 989180, 1187016, 1335393, 1483770, 1582688, 1780524, 1978360, 2225655, 2374032, 2670786, 2967540, 3165376, 3561048, 3956720, 4006179, 4451310, 4748064, 5341572, 5935080, 6330752, 6676965, 7122096, 7913440, 8012358, 8902620, 9496128, 10683144, 11870160, 12661504, 13353930, 14244192, 15826880, 16024716, 17805240, 18992256, 20030895, 21366288, 23740320, 25323008, 26707860, 28488384, 31653760, 32049432, 35610480, 37984512, 40061790, 42732576, 47480640, 50646016, 53415720, 56976768, 63307520, 64098864, 71220960, 75969024, 80123580, 85465152, 94961280, 106831440, 113953536, 126615040, 128197728, 142441920, 151938048, 160247160, 170930304, 189922560, 213662880, 227907072, 253230080, 256395456, 284883840, 320494320, 341860608, 379845120, 427325760, 455814144, 512790912, 569767680, 640988640, 683721216, 759690240, 854651520, 1025581824, 1139535360, 1281977280, 1367442432, 1709303040, 2051163648, 2279070720, 2563954560, 3418606080, 4102327296, 5127909120, 6837212160, 10255818240, 20511636480]

約数ペア:

[(1, 20511636480), (2, 10255818240), (3, 6837212160), (4, 5127909120), (5, 4102327296), (6, 3418606080), (8, 2563954560), (9, 2279070720), (10, 2051163648), (12, 1709303040), (15, 1367442432), (16, 1281977280), (18, 1139535360), (20, 1025581824), (24, 854651520), (27, 759690240), (30, 683721216), (32, 640988640), (36, 569767680), (40, 512790912), (45, 455814144), (48, 427325760), (54, 379845120), (60, 341860608), (64, 320494320), (72, 284883840), (80, 256395456), (81, 253230080), (90, 227907072), (96, 213662880), (108, 189922560), (120, 170930304), (128, 160247160), (135, 151938048), (144, 142441920), (160, 128197728), (162, 126615040), (180, 113953536), (192, 106831440), (216, 94961280), (240, 85465152), (256, 80123580), (270, 75969024), (288, 71220960), (320, 64098864), (324, 63307520), (360, 56976768), (384, 53415720), (405, 50646016), (432, 47480640), (480, 42732576), (512, 40061790), (540, 37984512), (576, 35610480), (640, 32049432), (648, 31653760), (720, 28488384), (768, 26707860), (810, 25323008), (864, 23740320), (960, 21366288), (1024, 20030895), (1080, 18992256), (1152, 17805240), (1280, 16024716), (1296, 15826880), (1440, 14244192), (1536, 13353930), (1620, 12661504), (1728, 11870160), (1920, 10683144), (2160, 9496128), (2304, 8902620), (2560, 8012358), (2592, 7913440), (2880, 7122096), (3072, 6676965), (3240, 6330752), (3456, 5935080), (3840, 5341572), (4320, 4748064), (4608, 4451310), (5120, 4006179), (5184, 3956720), (5760, 3561048), (6480, 3165376), (6912, 2967540), (7680, 2670786), (8640, 2374032), (9216, 2225655), (10368, 1978360), (11520, 1780524), (12960, 1582688), (13824, 1483770), (15360, 1335393), (17280, 1187016), (20736, 989180), (23040, 890262), (25920, 791344), (27648, 741885), (34560, 593508), (41472, 494590), (46080, 445131), (49459, 414720), (51840, 395672), (69120, 296754), (82944, 247295), (98918, 207360), (103680, 197836), (138240, 148377)]