81472440

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4217}}^1$

素因数の和:4261

約数の個数: 128

約数和(自身を含む): 291548160

約数和(自身を除く): 210075720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 56, 60, 69, 70, 84, 92, 105, 115, 120, 138, 140, 161, 168, 184, 210, 230, 276, 280, 322, 345, 420, 460, 483, 552, 644, 690, 805, 840, 920, 966, 1288, 1380, 1610, 1932, 2415, 2760, 3220, 3864, 4217, 4830, 6440, 8434, 9660, 12651, 16868, 19320, 21085, 25302, 29519, 33736, 42170, 50604, 59038, 63255, 84340, 88557, 96991, 101208, 118076, 126510, 147595, 168680, 177114, 193982, 236152, 253020, 290973, 295190, 354228, 387964, 442785, 484955, 506040, 581946, 590380, 678937, 708456, 775928, 885570, 969910, 1163892, 1180760, 1357874, 1454865, 1771140, 1939820, 2036811, 2327784, 2715748, 2909730, 3394685, 3542280, 3879640, 4073622, 5431496, 5819460, 6789370, 8147244, 10184055, 11638920, 13578740, 16294488, 20368110, 27157480, 40736220, 81472440]

約数ペア:

[(1, 81472440), (2, 40736220), (3, 27157480), (4, 20368110), (5, 16294488), (6, 13578740), (7, 11638920), (8, 10184055), (10, 8147244), (12, 6789370), (14, 5819460), (15, 5431496), (20, 4073622), (21, 3879640), (23, 3542280), (24, 3394685), (28, 2909730), (30, 2715748), (35, 2327784), (40, 2036811), (42, 1939820), (46, 1771140), (56, 1454865), (60, 1357874), (69, 1180760), (70, 1163892), (84, 969910), (92, 885570), (105, 775928), (115, 708456), (120, 678937), (138, 590380), (140, 581946), (161, 506040), (168, 484955), (184, 442785), (210, 387964), (230, 354228), (276, 295190), (280, 290973), (322, 253020), (345, 236152), (420, 193982), (460, 177114), (483, 168680), (552, 147595), (644, 126510), (690, 118076), (805, 101208), (840, 96991), (920, 88557), (966, 84340), (1288, 63255), (1380, 59038), (1610, 50604), (1932, 42170), (2415, 33736), (2760, 29519), (3220, 25302), (3864, 21085), (4217, 19320), (4830, 16868), (6440, 12651), (8434, 9660)]