257635840

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1307}}^1$

素因数の和:1348

約数の個数: 160

約数和(自身を含む): 770736384

約数和(自身を除く): 513100544

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 64, 70, 77, 80, 88, 110, 112, 128, 140, 154, 160, 176, 220, 224, 256, 280, 308, 320, 352, 385, 440, 448, 512, 560, 616, 640, 704, 770, 880, 896, 1120, 1232, 1280, 1307, 1408, 1540, 1760, 1792, 2240, 2464, 2560, 2614, 2816, 3080, 3520, 3584, 4480, 4928, 5228, 5632, 6160, 6535, 7040, 8960, 9149, 9856, 10456, 12320, 13070, 14080, 14377, 17920, 18298, 19712, 20912, 24640, 26140, 28160, 28754, 36596, 39424, 41824, 45745, 49280, 52280, 57508, 71885, 73192, 83648, 91490, 98560, 100639, 104560, 115016, 143770, 146384, 167296, 182980, 197120, 201278, 209120, 230032, 287540, 292768, 334592, 365960, 402556, 418240, 460064, 503195, 575080, 585536, 669184, 731920, 805112, 836480, 920128, 1006390, 1150160, 1171072, 1463840, 1610224, 1672960, 1840256, 2012780, 2300320, 2342144, 2927680, 3220448, 3345920, 3680512, 4025560, 4600640, 4684288, 5855360, 6440896, 7361024, 8051120, 9201280, 11710720, 12881792, 16102240, 18402560, 23421440, 25763584, 32204480, 36805120, 51527168, 64408960, 128817920, 257635840]

約数ペア:

[(1, 257635840), (2, 128817920), (4, 64408960), (5, 51527168), (7, 36805120), (8, 32204480), (10, 25763584), (11, 23421440), (14, 18402560), (16, 16102240), (20, 12881792), (22, 11710720), (28, 9201280), (32, 8051120), (35, 7361024), (40, 6440896), (44, 5855360), (55, 4684288), (56, 4600640), (64, 4025560), (70, 3680512), (77, 3345920), (80, 3220448), (88, 2927680), (110, 2342144), (112, 2300320), (128, 2012780), (140, 1840256), (154, 1672960), (160, 1610224), (176, 1463840), (220, 1171072), (224, 1150160), (256, 1006390), (280, 920128), (308, 836480), (320, 805112), (352, 731920), (385, 669184), (440, 585536), (448, 575080), (512, 503195), (560, 460064), (616, 418240), (640, 402556), (704, 365960), (770, 334592), (880, 292768), (896, 287540), (1120, 230032), (1232, 209120), (1280, 201278), (1307, 197120), (1408, 182980), (1540, 167296), (1760, 146384), (1792, 143770), (2240, 115016), (2464, 104560), (2560, 100639), (2614, 98560), (2816, 91490), (3080, 83648), (3520, 73192), (3584, 71885), (4480, 57508), (4928, 52280), (5228, 49280), (5632, 45745), (6160, 41824), (6535, 39424), (7040, 36596), (8960, 28754), (9149, 28160), (9856, 26140), (10456, 24640), (12320, 20912), (13070, 19712), (14080, 18298), (14377, 17920)]