257322240

素因数分解:

$2^8\times 3^2\times 5^1\times 7^1\times {\mathrm{3191}}^1$

素因数の和:3225

約数の個数: 216

約数和(自身を含む): 1017813888

約数和(自身を除く): 760491648

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, 256, 280, 288, 315, 320, 336, 360, 384, 420, 448, 480, 504, 560, 576, 630, 640, 672, 720, 768, 840, 896, 960, 1008, 1120, 1152, 1260, 1280, 1344, 1440, 1680, 1792, 1920, 2016, 2240, 2304, 2520, 2688, 2880, 3191, 3360, 3840, 4032, 4480, 5040, 5376, 5760, 6382, 6720, 8064, 8960, 9573, 10080, 11520, 12764, 13440, 15955, 16128, 19146, 20160, 22337, 25528, 26880, 28719, 31910, 38292, 40320, 44674, 47865, 51056, 57438, 63820, 67011, 76584, 80640, 89348, 95730, 102112, 111685, 114876, 127640, 134022, 143595, 153168, 178696, 191460, 201033, 204224, 223370, 229752, 255280, 268044, 287190, 306336, 335055, 357392, 382920, 402066, 408448, 446740, 459504, 510560, 536088, 574380, 612672, 670110, 714784, 765840, 804132, 816896, 893480, 919008, 1005165, 1021120, 1072176, 1148760, 1225344, 1340220, 1429568, 1531680, 1608264, 1786960, 1838016, 2010330, 2042240, 2144352, 2297520, 2450688, 2680440, 2859136, 3063360, 3216528, 3573920, 3676032, 4020660, 4084480, 4288704, 4595040, 5360880, 5718272, 6126720, 6433056, 7147840, 7352064, 8041320, 8577408, 9190080, 10721760, 12253440, 12866112, 14295680, 16082640, 17154816, 18380160, 21443520, 25732224, 28591360, 32165280, 36760320, 42887040, 51464448, 64330560, 85774080, 128661120, 257322240]

約数ペア:

[(1, 257322240), (2, 128661120), (3, 85774080), (4, 64330560), (5, 51464448), (6, 42887040), (7, 36760320), (8, 32165280), (9, 28591360), (10, 25732224), (12, 21443520), (14, 18380160), (15, 17154816), (16, 16082640), (18, 14295680), (20, 12866112), (21, 12253440), (24, 10721760), (28, 9190080), (30, 8577408), (32, 8041320), (35, 7352064), (36, 7147840), (40, 6433056), (42, 6126720), (45, 5718272), (48, 5360880), (56, 4595040), (60, 4288704), (63, 4084480), (64, 4020660), (70, 3676032), (72, 3573920), (80, 3216528), (84, 3063360), (90, 2859136), (96, 2680440), (105, 2450688), (112, 2297520), (120, 2144352), (126, 2042240), (128, 2010330), (140, 1838016), (144, 1786960), (160, 1608264), (168, 1531680), (180, 1429568), (192, 1340220), (210, 1225344), (224, 1148760), (240, 1072176), (252, 1021120), (256, 1005165), (280, 919008), (288, 893480), (315, 816896), (320, 804132), (336, 765840), (360, 714784), (384, 670110), (420, 612672), (448, 574380), (480, 536088), (504, 510560), (560, 459504), (576, 446740), (630, 408448), (640, 402066), (672, 382920), (720, 357392), (768, 335055), (840, 306336), (896, 287190), (960, 268044), (1008, 255280), (1120, 229752), (1152, 223370), (1260, 204224), (1280, 201033), (1344, 191460), (1440, 178696), (1680, 153168), (1792, 143595), (1920, 134022), (2016, 127640), (2240, 114876), (2304, 111685), (2520, 102112), (2688, 95730), (2880, 89348), (3191, 80640), (3360, 76584), (3840, 67011), (4032, 63820), (4480, 57438), (5040, 51056), (5376, 47865), (5760, 44674), (6382, 40320), (6720, 38292), (8064, 31910), (8960, 28719), (9573, 26880), (10080, 25528), (11520, 22337), (12764, 20160), (13440, 19146), (15955, 16128)]