209218256

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{457}}^1$

素因数の和:580

約数の個数: 80

約数和(自身を含む): 457970688

約数和(自身を除く): 248752432

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 71, 104, 124, 142, 208, 248, 284, 403, 457, 496, 568, 806, 914, 923, 1136, 1612, 1828, 1846, 2201, 3224, 3656, 3692, 4402, 5941, 6448, 7312, 7384, 8804, 11882, 14167, 14768, 17608, 23764, 28334, 28613, 32447, 35216, 47528, 56668, 57226, 64894, 95056, 113336, 114452, 129788, 184171, 226672, 228904, 259576, 368342, 421811, 457808, 519152, 736684, 843622, 1005857, 1473368, 1687244, 2011714, 2946736, 3374488, 4023428, 6748976, 8046856, 13076141, 16093712, 26152282, 52304564, 104609128, 209218256]

約数ペア:

[(1, 209218256), (2, 104609128), (4, 52304564), (8, 26152282), (13, 16093712), (16, 13076141), (26, 8046856), (31, 6748976), (52, 4023428), (62, 3374488), (71, 2946736), (104, 2011714), (124, 1687244), (142, 1473368), (208, 1005857), (248, 843622), (284, 736684), (403, 519152), (457, 457808), (496, 421811), (568, 368342), (806, 259576), (914, 228904), (923, 226672), (1136, 184171), (1612, 129788), (1828, 114452), (1846, 113336), (2201, 95056), (3224, 64894), (3656, 57226), (3692, 56668), (4402, 47528), (5941, 35216), (6448, 32447), (7312, 28613), (7384, 28334), (8804, 23764), (11882, 17608), (14167, 14768)]