638081520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{27409}}^1$

素因数の和:27522

約数の個数: 80

約数和(自身を含む): 1998517920

約数和(自身を除く): 1360436400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 97, 120, 194, 240, 291, 388, 485, 582, 776, 970, 1164, 1455, 1552, 1940, 2328, 2910, 3880, 4656, 5820, 7760, 11640, 23280, 27409, 54818, 82227, 109636, 137045, 164454, 219272, 274090, 328908, 411135, 438544, 548180, 657816, 822270, 1096360, 1315632, 1644540, 2192720, 2658673, 3289080, 5317346, 6578160, 7976019, 10634692, 13293365, 15952038, 21269384, 26586730, 31904076, 39880095, 42538768, 53173460, 63808152, 79760190, 106346920, 127616304, 159520380, 212693840, 319040760, 638081520]

約数ペア:

[(1, 638081520), (2, 319040760), (3, 212693840), (4, 159520380), (5, 127616304), (6, 106346920), (8, 79760190), (10, 63808152), (12, 53173460), (15, 42538768), (16, 39880095), (20, 31904076), (24, 26586730), (30, 21269384), (40, 15952038), (48, 13293365), (60, 10634692), (80, 7976019), (97, 6578160), (120, 5317346), (194, 3289080), (240, 2658673), (291, 2192720), (388, 1644540), (485, 1315632), (582, 1096360), (776, 822270), (970, 657816), (1164, 548180), (1455, 438544), (1552, 411135), (1940, 328908), (2328, 274090), (2910, 219272), (3880, 164454), (4656, 137045), (5820, 109636), (7760, 82227), (11640, 54818), (23280, 27409)]