19735040

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{593}}^1$

素因数の和:629

約数の個数: 80

約数和(自身を含む): 51043608

約数和(自身を除く): 31308568

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 512, 520, 593, 640, 832, 1040, 1186, 1280, 1664, 2080, 2372, 2560, 2965, 3328, 4160, 4744, 5930, 6656, 7709, 8320, 9488, 11860, 15418, 16640, 18976, 23720, 30836, 33280, 37952, 38545, 47440, 61672, 75904, 77090, 94880, 123344, 151808, 154180, 189760, 246688, 303616, 308360, 379520, 493376, 616720, 759040, 986752, 1233440, 1518080, 1973504, 2466880, 3947008, 4933760, 9867520, 19735040]

約数ペア:

[(1, 19735040), (2, 9867520), (4, 4933760), (5, 3947008), (8, 2466880), (10, 1973504), (13, 1518080), (16, 1233440), (20, 986752), (26, 759040), (32, 616720), (40, 493376), (52, 379520), (64, 308360), (65, 303616), (80, 246688), (104, 189760), (128, 154180), (130, 151808), (160, 123344), (208, 94880), (256, 77090), (260, 75904), (320, 61672), (416, 47440), (512, 38545), (520, 37952), (593, 33280), (640, 30836), (832, 23720), (1040, 18976), (1186, 16640), (1280, 15418), (1664, 11860), (2080, 9488), (2372, 8320), (2560, 7709), (2965, 6656), (3328, 5930), (4160, 4744)]