81860240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1$

素因数の和:265

約数の個数: 160

約数和(自身を含む): 241484544

約数和(自身を除く): 159624304

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 97, 110, 112, 137, 140, 154, 176, 194, 220, 274, 280, 308, 385, 388, 440, 485, 548, 560, 616, 679, 685, 770, 776, 880, 959, 970, 1067, 1096, 1232, 1358, 1370, 1507, 1540, 1552, 1918, 1940, 2134, 2192, 2716, 2740, 3014, 3080, 3395, 3836, 3880, 4268, 4795, 5335, 5432, 5480, 6028, 6160, 6790, 7469, 7535, 7672, 7760, 8536, 9590, 10549, 10670, 10864, 10960, 12056, 13289, 13580, 14938, 15070, 15344, 17072, 19180, 21098, 21340, 24112, 26578, 27160, 29876, 30140, 37345, 38360, 42196, 42680, 52745, 53156, 54320, 59752, 60280, 66445, 74690, 76720, 84392, 85360, 93023, 105490, 106312, 119504, 120560, 132890, 146179, 149380, 168784, 186046, 210980, 212624, 265780, 292358, 298760, 372092, 421960, 465115, 531560, 584716, 597520, 730895, 744184, 843920, 930230, 1023253, 1063120, 1169432, 1461790, 1488368, 1860460, 2046506, 2338864, 2923580, 3720920, 4093012, 5116265, 5847160, 7441840, 8186024, 10232530, 11694320, 16372048, 20465060, 40930120, 81860240]

約数ペア:

[(1, 81860240), (2, 40930120), (4, 20465060), (5, 16372048), (7, 11694320), (8, 10232530), (10, 8186024), (11, 7441840), (14, 5847160), (16, 5116265), (20, 4093012), (22, 3720920), (28, 2923580), (35, 2338864), (40, 2046506), (44, 1860460), (55, 1488368), (56, 1461790), (70, 1169432), (77, 1063120), (80, 1023253), (88, 930230), (97, 843920), (110, 744184), (112, 730895), (137, 597520), (140, 584716), (154, 531560), (176, 465115), (194, 421960), (220, 372092), (274, 298760), (280, 292358), (308, 265780), (385, 212624), (388, 210980), (440, 186046), (485, 168784), (548, 149380), (560, 146179), (616, 132890), (679, 120560), (685, 119504), (770, 106312), (776, 105490), (880, 93023), (959, 85360), (970, 84392), (1067, 76720), (1096, 74690), (1232, 66445), (1358, 60280), (1370, 59752), (1507, 54320), (1540, 53156), (1552, 52745), (1918, 42680), (1940, 42196), (2134, 38360), (2192, 37345), (2716, 30140), (2740, 29876), (3014, 27160), (3080, 26578), (3395, 24112), (3836, 21340), (3880, 21098), (4268, 19180), (4795, 17072), (5335, 15344), (5432, 15070), (5480, 14938), (6028, 13580), (6160, 13289), (6790, 12056), (7469, 10960), (7535, 10864), (7672, 10670), (7760, 10549), (8536, 9590)]