257831448

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{691}}^1\times {\mathrm{2221}}^1$

素因数の和:2928

約数の個数: 64

約数和(自身を含む): 738059520

約数和(自身を除く): 480228072

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 691, 1382, 2073, 2221, 2764, 4146, 4442, 4837, 5528, 6663, 8292, 8884, 9674, 13326, 14511, 15547, 16584, 17768, 19348, 26652, 29022, 31094, 38696, 46641, 53304, 58044, 62188, 93282, 116088, 124376, 186564, 373128, 1534711, 3069422, 4604133, 6138844, 9208266, 10742977, 12277688, 18416532, 21485954, 32228931, 36833064, 42971908, 64457862, 85943816, 128915724, 257831448]

約数ペア:

[(1, 257831448), (2, 128915724), (3, 85943816), (4, 64457862), (6, 42971908), (7, 36833064), (8, 32228931), (12, 21485954), (14, 18416532), (21, 12277688), (24, 10742977), (28, 9208266), (42, 6138844), (56, 4604133), (84, 3069422), (168, 1534711), (691, 373128), (1382, 186564), (2073, 124376), (2221, 116088), (2764, 93282), (4146, 62188), (4442, 58044), (4837, 53304), (5528, 46641), (6663, 38696), (8292, 31094), (8884, 29022), (9674, 26652), (13326, 19348), (14511, 17768), (15547, 16584)]