641554560

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{271}}^1$

素因数の和:436

約数の個数: 256

約数和(自身を含む): 2297203200

約数和(自身を除く): 1655648640

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, 90, 96, 108, 120, 128, 135, 137, 144, 160, 180, 192, 216, 240, 270, 271, 274, 288, 320, 360, 384, 411, 432, 480, 540, 542, 548, 576, 640, 685, 720, 813, 822, 864, 960, 1080, 1084, 1096, 1152, 1233, 1355, 1370, 1440, 1626, 1644, 1728, 1920, 2055, 2160, 2168, 2192, 2439, 2466, 2710, 2740, 2880, 3252, 3288, 3456, 3699, 4065, 4110, 4320, 4336, 4384, 4878, 4932, 5420, 5480, 5760, 6165, 6504, 6576, 7317, 7398, 8130, 8220, 8640, 8672, 8768, 9756, 9864, 10840, 10960, 12195, 12330, 13008, 13152, 14634, 14796, 16260, 16440, 17280, 17344, 17536, 18495, 19512, 19728, 21680, 21920, 24390, 24660, 26016, 26304, 29268, 29592, 32520, 32880, 34688, 36585, 36990, 37127, 39024, 39456, 43360, 43840, 48780, 49320, 52032, 52608, 58536, 59184, 65040, 65760, 73170, 73980, 74254, 78048, 78912, 86720, 87680, 97560, 98640, 104064, 111381, 117072, 118368, 130080, 131520, 146340, 147960, 148508, 156096, 157824, 173440, 185635, 195120, 197280, 222762, 234144, 236736, 260160, 263040, 292680, 295920, 297016, 312192, 334143, 371270, 390240, 394560, 445524, 468288, 473472, 520320, 556905, 585360, 591840, 594032, 668286, 742540, 780480, 789120, 891048, 936576, 1002429, 1113810, 1170720, 1183680, 1188064, 1336572, 1485080, 1560960, 1670715, 1782096, 2004858, 2227620, 2341440, 2367360, 2376128, 2673144, 2970160, 3341430, 3564192, 4009716, 4455240, 4682880, 4752256, 5012145, 5346288, 5940320, 6682860, 7128384, 8019432, 8910480, 10024290, 10692576, 11880640, 13365720, 14256768, 16038864, 17820960, 20048580, 21385152, 23761280, 26731440, 32077728, 35641920, 40097160, 42770304, 53462880, 64155456, 71283840, 80194320, 106925760, 128310912, 160388640, 213851520, 320777280, 641554560]

約数ペア:

[(1, 641554560), (2, 320777280), (3, 213851520), (4, 160388640), (5, 128310912), (6, 106925760), (8, 80194320), (9, 71283840), (10, 64155456), (12, 53462880), (15, 42770304), (16, 40097160), (18, 35641920), (20, 32077728), (24, 26731440), (27, 23761280), (30, 21385152), (32, 20048580), (36, 17820960), (40, 16038864), (45, 14256768), (48, 13365720), (54, 11880640), (60, 10692576), (64, 10024290), (72, 8910480), (80, 8019432), (90, 7128384), (96, 6682860), (108, 5940320), (120, 5346288), (128, 5012145), (135, 4752256), (137, 4682880), (144, 4455240), (160, 4009716), (180, 3564192), (192, 3341430), (216, 2970160), (240, 2673144), (270, 2376128), (271, 2367360), (274, 2341440), (288, 2227620), (320, 2004858), (360, 1782096), (384, 1670715), (411, 1560960), (432, 1485080), (480, 1336572), (540, 1188064), (542, 1183680), (548, 1170720), (576, 1113810), (640, 1002429), (685, 936576), (720, 891048), (813, 789120), (822, 780480), (864, 742540), (960, 668286), (1080, 594032), (1084, 591840), (1096, 585360), (1152, 556905), (1233, 520320), (1355, 473472), (1370, 468288), (1440, 445524), (1626, 394560), (1644, 390240), (1728, 371270), (1920, 334143), (2055, 312192), (2160, 297016), (2168, 295920), (2192, 292680), (2439, 263040), (2466, 260160), (2710, 236736), (2740, 234144), (2880, 222762), (3252, 197280), (3288, 195120), (3456, 185635), (3699, 173440), (4065, 157824), (4110, 156096), (4320, 148508), (4336, 147960), (4384, 146340), (4878, 131520), (4932, 130080), (5420, 118368), (5480, 117072), (5760, 111381), (6165, 104064), (6504, 98640), (6576, 97560), (7317, 87680), (7398, 86720), (8130, 78912), (8220, 78048), (8640, 74254), (8672, 73980), (8768, 73170), (9756, 65760), (9864, 65040), (10840, 59184), (10960, 58536), (12195, 52608), (12330, 52032), (13008, 49320), (13152, 48780), (14634, 43840), (14796, 43360), (16260, 39456), (16440, 39024), (17280, 37127), (17344, 36990), (17536, 36585), (18495, 34688), (19512, 32880), (19728, 32520), (21680, 29592), (21920, 29268), (24390, 26304), (24660, 26016)]