21271600

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:203

約数の個数: 120

約数和(自身を含む): 59781888

約数和(自身を除く): 38510288

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 71, 80, 100, 107, 112, 140, 142, 175, 200, 214, 280, 284, 350, 355, 400, 428, 497, 535, 560, 568, 700, 710, 749, 856, 994, 1070, 1136, 1400, 1420, 1498, 1712, 1775, 1988, 2140, 2485, 2675, 2800, 2840, 2996, 3550, 3745, 3976, 4280, 4970, 5350, 5680, 5992, 7100, 7490, 7597, 7952, 8560, 9940, 10700, 11984, 12425, 14200, 14980, 15194, 18725, 19880, 21400, 24850, 28400, 29960, 30388, 37450, 37985, 39760, 42800, 49700, 53179, 59920, 60776, 74900, 75970, 99400, 106358, 121552, 149800, 151940, 189925, 198800, 212716, 265895, 299600, 303880, 379850, 425432, 531790, 607760, 759700, 850864, 1063580, 1329475, 1519400, 2127160, 2658950, 3038800, 4254320, 5317900, 10635800, 21271600]

約数ペア:

[(1, 21271600), (2, 10635800), (4, 5317900), (5, 4254320), (7, 3038800), (8, 2658950), (10, 2127160), (14, 1519400), (16, 1329475), (20, 1063580), (25, 850864), (28, 759700), (35, 607760), (40, 531790), (50, 425432), (56, 379850), (70, 303880), (71, 299600), (80, 265895), (100, 212716), (107, 198800), (112, 189925), (140, 151940), (142, 149800), (175, 121552), (200, 106358), (214, 99400), (280, 75970), (284, 74900), (350, 60776), (355, 59920), (400, 53179), (428, 49700), (497, 42800), (535, 39760), (560, 37985), (568, 37450), (700, 30388), (710, 29960), (749, 28400), (856, 24850), (994, 21400), (1070, 19880), (1136, 18725), (1400, 15194), (1420, 14980), (1498, 14200), (1712, 12425), (1775, 11984), (1988, 10700), (2140, 9940), (2485, 8560), (2675, 7952), (2800, 7597), (2840, 7490), (2996, 7100), (3550, 5992), (3745, 5680), (3976, 5350), (4280, 4970)]