257427222

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{127}}^1\times {\mathrm{1999}}^1$

素因数の和:2157

約数の個数: 48

約数和(自身を含む): 562176000

約数和(自身を除く): 304748778

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 127, 169, 254, 338, 381, 507, 762, 1014, 1651, 1999, 3302, 3998, 4953, 5997, 9906, 11994, 21463, 25987, 42926, 51974, 64389, 77961, 128778, 155922, 253873, 337831, 507746, 675662, 761619, 1013493, 1523238, 2026986, 3300349, 6600698, 9901047, 19802094, 42904537, 85809074, 128713611, 257427222]

約数ペア:

[(1, 257427222), (2, 128713611), (3, 85809074), (6, 42904537), (13, 19802094), (26, 9901047), (39, 6600698), (78, 3300349), (127, 2026986), (169, 1523238), (254, 1013493), (338, 761619), (381, 675662), (507, 507746), (762, 337831), (1014, 253873), (1651, 155922), (1999, 128778), (3302, 77961), (3998, 64389), (4953, 51974), (5997, 42926), (9906, 25987), (11994, 21463)]