81365030

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{433}}^1$

素因数の和:525

約数の個数: 64

約数和(自身を含む): 164989440

約数和(自身を除く): 83624410

約数列:

[1, 2, 5, 10, 19, 23, 38, 43, 46, 86, 95, 115, 190, 215, 230, 430, 433, 437, 817, 866, 874, 989, 1634, 1978, 2165, 2185, 4085, 4330, 4370, 4945, 8170, 8227, 9890, 9959, 16454, 18619, 18791, 19918, 37238, 37582, 41135, 49795, 82270, 93095, 93955, 99590, 186190, 187910, 189221, 353761, 378442, 428237, 707522, 856474, 946105, 1768805, 1892210, 2141185, 3537610, 4282370, 8136503, 16273006, 40682515, 81365030]

約数ペア:

[(1, 81365030), (2, 40682515), (5, 16273006), (10, 8136503), (19, 4282370), (23, 3537610), (38, 2141185), (43, 1892210), (46, 1768805), (86, 946105), (95, 856474), (115, 707522), (190, 428237), (215, 378442), (230, 353761), (430, 189221), (433, 187910), (437, 186190), (817, 99590), (866, 93955), (874, 93095), (989, 82270), (1634, 49795), (1978, 41135), (2165, 37582), (2185, 37238), (4085, 19918), (4330, 18791), (4370, 18619), (4945, 16454), (8170, 9959), (8227, 9890)]