21020705520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{911}}^1\times {\mathrm{1217}}^1$

素因数の和:2223

約数の個数: 160

約数和(自身を含む): 66115768320

約数和(自身を除く): 45095062800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 79, 80, 120, 158, 237, 240, 316, 395, 474, 632, 790, 911, 948, 1185, 1217, 1264, 1580, 1822, 1896, 2370, 2434, 2733, 3160, 3644, 3651, 3792, 4555, 4740, 4868, 5466, 6085, 6320, 7288, 7302, 9110, 9480, 9736, 10932, 12170, 13665, 14576, 14604, 18220, 18255, 18960, 19472, 21864, 24340, 27330, 29208, 36440, 36510, 43728, 48680, 54660, 58416, 71969, 72880, 73020, 96143, 97360, 109320, 143938, 146040, 192286, 215907, 218640, 287876, 288429, 292080, 359845, 384572, 431814, 480715, 575752, 576858, 719690, 769144, 863628, 961430, 1079535, 1108687, 1151504, 1153716, 1439380, 1442145, 1538288, 1727256, 1922860, 2159070, 2217374, 2307432, 2878760, 2884290, 3326061, 3454512, 3845720, 4318140, 4434748, 4614864, 5543435, 5757520, 5768580, 6652122, 7691440, 8636280, 8869496, 11086870, 11537160, 13304244, 16630305, 17272560, 17738992, 22173740, 23074320, 26608488, 33260610, 44347480, 53216976, 66521220, 87586273, 88694960, 133042440, 175172546, 262758819, 266084880, 350345092, 437931365, 525517638, 700690184, 875862730, 1051035276, 1313794095, 1401380368, 1751725460, 2102070552, 2627588190, 3503450920, 4204141104, 5255176380, 7006901840, 10510352760, 21020705520]

約数ペア:

[(1, 21020705520), (2, 10510352760), (3, 7006901840), (4, 5255176380), (5, 4204141104), (6, 3503450920), (8, 2627588190), (10, 2102070552), (12, 1751725460), (15, 1401380368), (16, 1313794095), (20, 1051035276), (24, 875862730), (30, 700690184), (40, 525517638), (48, 437931365), (60, 350345092), (79, 266084880), (80, 262758819), (120, 175172546), (158, 133042440), (237, 88694960), (240, 87586273), (316, 66521220), (395, 53216976), (474, 44347480), (632, 33260610), (790, 26608488), (911, 23074320), (948, 22173740), (1185, 17738992), (1217, 17272560), (1264, 16630305), (1580, 13304244), (1822, 11537160), (1896, 11086870), (2370, 8869496), (2434, 8636280), (2733, 7691440), (3160, 6652122), (3644, 5768580), (3651, 5757520), (3792, 5543435), (4555, 4614864), (4740, 4434748), (4868, 4318140), (5466, 3845720), (6085, 3454512), (6320, 3326061), (7288, 2884290), (7302, 2878760), (9110, 2307432), (9480, 2217374), (9736, 2159070), (10932, 1922860), (12170, 1727256), (13665, 1538288), (14576, 1442145), (14604, 1439380), (18220, 1153716), (18255, 1151504), (18960, 1108687), (19472, 1079535), (21864, 961430), (24340, 863628), (27330, 769144), (29208, 719690), (36440, 576858), (36510, 575752), (43728, 480715), (48680, 431814), (54660, 384572), (58416, 359845), (71969, 292080), (72880, 288429), (73020, 287876), (96143, 218640), (97360, 215907), (109320, 192286), (143938, 146040)]