278319236

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{197}}^1\times {\mathrm{269}}^1$

素因数の和:584

約数の個数: 48

約数和(自身を含む): 534386160

約数和(自身を除く): 256066924

約数列:

[1, 2, 4, 13, 26, 52, 101, 197, 202, 269, 394, 404, 538, 788, 1076, 1313, 2561, 2626, 3497, 5122, 5252, 6994, 10244, 13988, 19897, 27169, 39794, 52993, 54338, 79588, 105986, 108676, 211972, 258661, 353197, 517322, 688909, 706394, 1034644, 1377818, 1412788, 2755636, 5352293, 10704586, 21409172, 69579809, 139159618, 278319236]

約数ペア:

[(1, 278319236), (2, 139159618), (4, 69579809), (13, 21409172), (26, 10704586), (52, 5352293), (101, 2755636), (197, 1412788), (202, 1377818), (269, 1034644), (394, 706394), (404, 688909), (538, 517322), (788, 353197), (1076, 258661), (1313, 211972), (2561, 108676), (2626, 105986), (3497, 79588), (5122, 54338), (5252, 52993), (6994, 39794), (10244, 27169), (13988, 19897)]