257871424

素因数分解:

$2^6\times {\mathrm{113}}^1\times {\mathrm{181}}^1\times {\mathrm{197}}^1$

素因数の和:503

約数の個数: 56

約数和(自身を含む): 521729208

約数和(自身を除く): 263857784

約数列:

[1, 2, 4, 8, 16, 32, 64, 113, 181, 197, 226, 362, 394, 452, 724, 788, 904, 1448, 1576, 1808, 2896, 3152, 3616, 5792, 6304, 7232, 11584, 12608, 20453, 22261, 35657, 40906, 44522, 71314, 81812, 89044, 142628, 163624, 178088, 285256, 327248, 356176, 570512, 654496, 712352, 1141024, 1308992, 1424704, 2282048, 4029241, 8058482, 16116964, 32233928, 64467856, 128935712, 257871424]

約数ペア:

[(1, 257871424), (2, 128935712), (4, 64467856), (8, 32233928), (16, 16116964), (32, 8058482), (64, 4029241), (113, 2282048), (181, 1424704), (197, 1308992), (226, 1141024), (362, 712352), (394, 654496), (452, 570512), (724, 356176), (788, 327248), (904, 285256), (1448, 178088), (1576, 163624), (1808, 142628), (2896, 89044), (3152, 81812), (3616, 71314), (5792, 44522), (6304, 40906), (7232, 35657), (11584, 22261), (12608, 20453)]