256890410

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{126547}}^1$

素因数の和:126590

約数の個数: 32

約数和(自身を含む): 546687360

約数和(自身を除く): 289796950

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 145, 203, 290, 406, 1015, 2030, 126547, 253094, 632735, 885829, 1265470, 1771658, 3669863, 4429145, 7339726, 8858290, 18349315, 25689041, 36698630, 51378082, 128445205, 256890410]

約数ペア:

[(1, 256890410), (2, 128445205), (5, 51378082), (7, 36698630), (10, 25689041), (14, 18349315), (29, 8858290), (35, 7339726), (58, 4429145), (70, 3669863), (145, 1771658), (203, 1265470), (290, 885829), (406, 632735), (1015, 253094), (2030, 126547)]