421809920

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{263}}^1$

素因数の和:470

約数の個数: 144

約数和(自身を含む): 1165570560

約数和(自身を除く): 743760640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 179, 224, 256, 263, 280, 320, 358, 448, 526, 560, 640, 716, 895, 896, 1052, 1120, 1253, 1280, 1315, 1432, 1790, 1792, 1841, 2104, 2240, 2506, 2630, 2864, 3580, 3682, 4208, 4480, 5012, 5260, 5728, 6265, 7160, 7364, 8416, 8960, 9205, 10024, 10520, 11456, 12530, 14320, 14728, 16832, 18410, 20048, 21040, 22912, 25060, 28640, 29456, 33664, 36820, 40096, 42080, 45824, 47077, 50120, 57280, 58912, 67328, 73640, 80192, 84160, 94154, 100240, 114560, 117824, 147280, 160384, 168320, 188308, 200480, 229120, 235385, 235648, 294560, 320768, 329539, 336640, 376616, 400960, 470770, 471296, 589120, 659078, 753232, 801920, 941540, 1178240, 1318156, 1506464, 1603840, 1647695, 1883080, 2356480, 2636312, 3012928, 3295390, 3766160, 5272624, 6025856, 6590780, 7532320, 10545248, 12051712, 13181560, 15064640, 21090496, 26363120, 30129280, 42180992, 52726240, 60258560, 84361984, 105452480, 210904960, 421809920]

約数ペア:

[(1, 421809920), (2, 210904960), (4, 105452480), (5, 84361984), (7, 60258560), (8, 52726240), (10, 42180992), (14, 30129280), (16, 26363120), (20, 21090496), (28, 15064640), (32, 13181560), (35, 12051712), (40, 10545248), (56, 7532320), (64, 6590780), (70, 6025856), (80, 5272624), (112, 3766160), (128, 3295390), (140, 3012928), (160, 2636312), (179, 2356480), (224, 1883080), (256, 1647695), (263, 1603840), (280, 1506464), (320, 1318156), (358, 1178240), (448, 941540), (526, 801920), (560, 753232), (640, 659078), (716, 589120), (895, 471296), (896, 470770), (1052, 400960), (1120, 376616), (1253, 336640), (1280, 329539), (1315, 320768), (1432, 294560), (1790, 235648), (1792, 235385), (1841, 229120), (2104, 200480), (2240, 188308), (2506, 168320), (2630, 160384), (2864, 147280), (3580, 117824), (3682, 114560), (4208, 100240), (4480, 94154), (5012, 84160), (5260, 80192), (5728, 73640), (6265, 67328), (7160, 58912), (7364, 57280), (8416, 50120), (8960, 47077), (9205, 45824), (10024, 42080), (10520, 40096), (11456, 36820), (12530, 33664), (14320, 29456), (14728, 28640), (16832, 25060), (18410, 22912), (20048, 21040)]