257648384

素因数分解:

$2^8\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2357}}^1$

素因数の和:2441

約数の個数: 72

約数和(自身を含む): 597649248

約数和(自身を除く): 340000864

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 61, 64, 112, 122, 128, 224, 244, 256, 427, 448, 488, 854, 896, 976, 1708, 1792, 1952, 2357, 3416, 3904, 4714, 6832, 7808, 9428, 13664, 15616, 16499, 18856, 27328, 32998, 37712, 54656, 65996, 75424, 109312, 131992, 143777, 150848, 263984, 287554, 301696, 527968, 575108, 603392, 1006439, 1055936, 1150216, 2012878, 2111872, 2300432, 4025756, 4223744, 4600864, 8051512, 9201728, 16103024, 18403456, 32206048, 36806912, 64412096, 128824192, 257648384]

約数ペア:

[(1, 257648384), (2, 128824192), (4, 64412096), (7, 36806912), (8, 32206048), (14, 18403456), (16, 16103024), (28, 9201728), (32, 8051512), (56, 4600864), (61, 4223744), (64, 4025756), (112, 2300432), (122, 2111872), (128, 2012878), (224, 1150216), (244, 1055936), (256, 1006439), (427, 603392), (448, 575108), (488, 527968), (854, 301696), (896, 287554), (976, 263984), (1708, 150848), (1792, 143777), (1952, 131992), (2357, 109312), (3416, 75424), (3904, 65996), (4714, 54656), (6832, 37712), (7808, 32998), (9428, 27328), (13664, 18856), (15616, 16499)]