86754860

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{197}}^1\times {\mathrm{227}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 185812704

約数和(自身を除く): 99057844

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 197, 227, 388, 394, 454, 485, 788, 908, 970, 985, 1135, 1940, 1970, 2270, 3940, 4540, 19109, 22019, 38218, 44038, 44719, 76436, 88076, 89438, 95545, 110095, 178876, 191090, 220190, 223595, 382180, 440380, 447190, 894380, 4337743, 8675486, 17350972, 21688715, 43377430, 86754860]

約数ペア:

[(1, 86754860), (2, 43377430), (4, 21688715), (5, 17350972), (10, 8675486), (20, 4337743), (97, 894380), (194, 447190), (197, 440380), (227, 382180), (388, 223595), (394, 220190), (454, 191090), (485, 178876), (788, 110095), (908, 95545), (970, 89438), (985, 88076), (1135, 76436), (1940, 44719), (1970, 44038), (2270, 38218), (3940, 22019), (4540, 19109)]