20795880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1303}}^1$

素因数の和:1343

約数の個数: 128

約数和(自身を含む): 75110400

約数和(自身を除く): 54314520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 56, 57, 60, 70, 76, 84, 95, 105, 114, 120, 133, 140, 152, 168, 190, 210, 228, 266, 280, 285, 380, 399, 420, 456, 532, 570, 665, 760, 798, 840, 1064, 1140, 1303, 1330, 1596, 1995, 2280, 2606, 2660, 3192, 3909, 3990, 5212, 5320, 6515, 7818, 7980, 9121, 10424, 13030, 15636, 15960, 18242, 19545, 24757, 26060, 27363, 31272, 36484, 39090, 45605, 49514, 52120, 54726, 72968, 74271, 78180, 91210, 99028, 109452, 123785, 136815, 148542, 156360, 173299, 182420, 198056, 218904, 247570, 273630, 297084, 346598, 364840, 371355, 495140, 519897, 547260, 594168, 693196, 742710, 866495, 990280, 1039794, 1094520, 1386392, 1485420, 1732990, 2079588, 2599485, 2970840, 3465980, 4159176, 5198970, 6931960, 10397940, 20795880]

約数ペア:

[(1, 20795880), (2, 10397940), (3, 6931960), (4, 5198970), (5, 4159176), (6, 3465980), (7, 2970840), (8, 2599485), (10, 2079588), (12, 1732990), (14, 1485420), (15, 1386392), (19, 1094520), (20, 1039794), (21, 990280), (24, 866495), (28, 742710), (30, 693196), (35, 594168), (38, 547260), (40, 519897), (42, 495140), (56, 371355), (57, 364840), (60, 346598), (70, 297084), (76, 273630), (84, 247570), (95, 218904), (105, 198056), (114, 182420), (120, 173299), (133, 156360), (140, 148542), (152, 136815), (168, 123785), (190, 109452), (210, 99028), (228, 91210), (266, 78180), (280, 74271), (285, 72968), (380, 54726), (399, 52120), (420, 49514), (456, 45605), (532, 39090), (570, 36484), (665, 31272), (760, 27363), (798, 26060), (840, 24757), (1064, 19545), (1140, 18242), (1303, 15960), (1330, 15636), (1596, 13030), (1995, 10424), (2280, 9121), (2606, 7980), (2660, 7818), (3192, 6515), (3909, 5320), (3990, 5212)]