51761920

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:190

約数の個数: 144

約数和(自身を含む): 145696320

約数和(自身を除く): 93934400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 53, 56, 64, 70, 80, 106, 109, 112, 128, 140, 160, 212, 218, 224, 256, 265, 280, 320, 371, 424, 436, 448, 530, 545, 560, 640, 742, 763, 848, 872, 896, 1060, 1090, 1120, 1280, 1484, 1526, 1696, 1744, 1792, 1855, 2120, 2180, 2240, 2968, 3052, 3392, 3488, 3710, 3815, 4240, 4360, 4480, 5777, 5936, 6104, 6784, 6976, 7420, 7630, 8480, 8720, 8960, 11554, 11872, 12208, 13568, 13952, 14840, 15260, 16960, 17440, 23108, 23744, 24416, 27904, 28885, 29680, 30520, 33920, 34880, 40439, 46216, 47488, 48832, 57770, 59360, 61040, 67840, 69760, 80878, 92432, 94976, 97664, 115540, 118720, 122080, 139520, 161756, 184864, 195328, 202195, 231080, 237440, 244160, 323512, 369728, 404390, 462160, 474880, 488320, 647024, 739456, 808780, 924320, 976640, 1294048, 1478912, 1617560, 1848640, 2588096, 3235120, 3697280, 5176192, 6470240, 7394560, 10352384, 12940480, 25880960, 51761920]

約数ペア:

[(1, 51761920), (2, 25880960), (4, 12940480), (5, 10352384), (7, 7394560), (8, 6470240), (10, 5176192), (14, 3697280), (16, 3235120), (20, 2588096), (28, 1848640), (32, 1617560), (35, 1478912), (40, 1294048), (53, 976640), (56, 924320), (64, 808780), (70, 739456), (80, 647024), (106, 488320), (109, 474880), (112, 462160), (128, 404390), (140, 369728), (160, 323512), (212, 244160), (218, 237440), (224, 231080), (256, 202195), (265, 195328), (280, 184864), (320, 161756), (371, 139520), (424, 122080), (436, 118720), (448, 115540), (530, 97664), (545, 94976), (560, 92432), (640, 80878), (742, 69760), (763, 67840), (848, 61040), (872, 59360), (896, 57770), (1060, 48832), (1090, 47488), (1120, 46216), (1280, 40439), (1484, 34880), (1526, 33920), (1696, 30520), (1744, 29680), (1792, 28885), (1855, 27904), (2120, 24416), (2180, 23744), (2240, 23108), (2968, 17440), (3052, 16960), (3392, 15260), (3488, 14840), (3710, 13952), (3815, 13568), (4240, 12208), (4360, 11872), (4480, 11554), (5777, 8960), (5936, 8720), (6104, 8480), (6784, 7630), (6976, 7420)]