20804950904

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{653}}^1\times {\mathrm{1171}}^1$

素因数の和:2028

約数の個数: 64

約数和(自身を含む): 41390352000

約数和(自身を除く): 20585401096

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 179, 358, 653, 716, 1171, 1306, 1432, 2342, 2612, 3401, 4684, 5224, 6802, 9368, 12407, 13604, 22249, 24814, 27208, 44498, 49628, 88996, 99256, 116887, 177992, 209609, 233774, 419218, 467548, 764663, 838436, 935096, 1529326, 1676872, 2220853, 3058652, 3982571, 4441706, 6117304, 7965142, 8883412, 14528597, 15930284, 17766824, 29057194, 31860568, 58114388, 116228776, 136874677, 273749354, 547498708, 1094997416, 2600618863, 5201237726, 10402475452, 20804950904]

約数ペア:

[(1, 20804950904), (2, 10402475452), (4, 5201237726), (8, 2600618863), (19, 1094997416), (38, 547498708), (76, 273749354), (152, 136874677), (179, 116228776), (358, 58114388), (653, 31860568), (716, 29057194), (1171, 17766824), (1306, 15930284), (1432, 14528597), (2342, 8883412), (2612, 7965142), (3401, 6117304), (4684, 4441706), (5224, 3982571), (6802, 3058652), (9368, 2220853), (12407, 1676872), (13604, 1529326), (22249, 935096), (24814, 838436), (27208, 764663), (44498, 467548), (49628, 419218), (88996, 233774), (99256, 209609), (116887, 177992)]