256429706

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{4481}}^1$

素因数の和:4598

約数の個数: 32

約数和(自身を含む): 433714176

約数和(自身を除く): 177284470

約数列:

[1, 2, 13, 26, 31, 62, 71, 142, 403, 806, 923, 1846, 2201, 4402, 4481, 8962, 28613, 57226, 58253, 116506, 138911, 277822, 318151, 636302, 1805843, 3611686, 4135963, 8271926, 9862681, 19725362, 128214853, 256429706]

約数ペア:

[(1, 256429706), (2, 128214853), (13, 19725362), (26, 9862681), (31, 8271926), (62, 4135963), (71, 3611686), (142, 1805843), (403, 636302), (806, 318151), (923, 277822), (1846, 138911), (2201, 116506), (4402, 58253), (4481, 57226), (8962, 28613)]