75481520

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1$

素因数の和:318

約数の個数: 80

約数和(自身を含む): 181113408

約数和(自身を除く): 105631888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 97, 137, 142, 194, 274, 284, 355, 388, 485, 548, 568, 685, 710, 776, 970, 1096, 1136, 1370, 1420, 1552, 1940, 2192, 2740, 2840, 3880, 5480, 5680, 6887, 7760, 9727, 10960, 13289, 13774, 19454, 26578, 27548, 34435, 38908, 48635, 53156, 55096, 66445, 68870, 77816, 97270, 106312, 110192, 132890, 137740, 155632, 194540, 212624, 265780, 275480, 389080, 531560, 550960, 778160, 943519, 1063120, 1887038, 3774076, 4717595, 7548152, 9435190, 15096304, 18870380, 37740760, 75481520]

約数ペア:

[(1, 75481520), (2, 37740760), (4, 18870380), (5, 15096304), (8, 9435190), (10, 7548152), (16, 4717595), (20, 3774076), (40, 1887038), (71, 1063120), (80, 943519), (97, 778160), (137, 550960), (142, 531560), (194, 389080), (274, 275480), (284, 265780), (355, 212624), (388, 194540), (485, 155632), (548, 137740), (568, 132890), (685, 110192), (710, 106312), (776, 97270), (970, 77816), (1096, 68870), (1136, 66445), (1370, 55096), (1420, 53156), (1552, 48635), (1940, 38908), (2192, 34435), (2740, 27548), (2840, 26578), (3880, 19454), (5480, 13774), (5680, 13289), (6887, 10960), (7760, 9727)]