1278881536

素因数分解:

$2^8\times {\mathrm{71}}^2\times {\mathrm{991}}^1$

素因数の和:1149

約数の個数: 54

約数和(自身を含む): 2591841056

約数和(自身を除く): 1312959520

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 128, 142, 256, 284, 568, 991, 1136, 1982, 2272, 3964, 4544, 5041, 7928, 9088, 10082, 15856, 18176, 20164, 31712, 40328, 63424, 70361, 80656, 126848, 140722, 161312, 253696, 281444, 322624, 562888, 645248, 1125776, 1290496, 2251552, 4503104, 4995631, 9006208, 9991262, 18012416, 19982524, 39965048, 79930096, 159860192, 319720384, 639440768, 1278881536]

約数ペア:

[(1, 1278881536), (2, 639440768), (4, 319720384), (8, 159860192), (16, 79930096), (32, 39965048), (64, 19982524), (71, 18012416), (128, 9991262), (142, 9006208), (256, 4995631), (284, 4503104), (568, 2251552), (991, 1290496), (1136, 1125776), (1982, 645248), (2272, 562888), (3964, 322624), (4544, 281444), (5041, 253696), (7928, 161312), (9088, 140722), (10082, 126848), (15856, 80656), (18176, 70361), (20164, 63424), (31712, 40328)]