256355456

素因数分解:

$2^7\times 7^3\times {\mathrm{5839}}^1$

素因数の和:5874

約数の個数: 64

約数和(自身を含む): 595680000

約数和(自身を除く): 339324544

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 343, 392, 448, 686, 784, 896, 1372, 1568, 2744, 3136, 5488, 5839, 6272, 10976, 11678, 21952, 23356, 40873, 43904, 46712, 81746, 93424, 163492, 186848, 286111, 326984, 373696, 572222, 653968, 747392, 1144444, 1307936, 2002777, 2288888, 2615872, 4005554, 4577776, 5231744, 8011108, 9155552, 16022216, 18311104, 32044432, 36622208, 64088864, 128177728, 256355456]

約数ペア:

[(1, 256355456), (2, 128177728), (4, 64088864), (7, 36622208), (8, 32044432), (14, 18311104), (16, 16022216), (28, 9155552), (32, 8011108), (49, 5231744), (56, 4577776), (64, 4005554), (98, 2615872), (112, 2288888), (128, 2002777), (196, 1307936), (224, 1144444), (343, 747392), (392, 653968), (448, 572222), (686, 373696), (784, 326984), (896, 286111), (1372, 186848), (1568, 163492), (2744, 93424), (3136, 81746), (5488, 46712), (5839, 43904), (6272, 40873), (10976, 23356), (11678, 21952)]