20189703808

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{1297}}^1\times {\mathrm{3923}}^1$

素因数の和:5265

約数の個数: 64

約数和(自身を含む): 41561752320

約数和(自身を除く): 21372048512

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 992, 1297, 1984, 2594, 3923, 3968, 5188, 7846, 10376, 15692, 20752, 31384, 40207, 41504, 62768, 80414, 83008, 121613, 125536, 160828, 166016, 243226, 251072, 321656, 486452, 502144, 643312, 972904, 1286624, 1945808, 2573248, 3891616, 5088131, 5146496, 7783232, 10176262, 15566464, 20352524, 40705048, 81410096, 157732061, 162820192, 315464122, 325640384, 630928244, 651280768, 1261856488, 2523712976, 5047425952, 10094851904, 20189703808]

約数ペア:

[(1, 20189703808), (2, 10094851904), (4, 5047425952), (8, 2523712976), (16, 1261856488), (31, 651280768), (32, 630928244), (62, 325640384), (64, 315464122), (124, 162820192), (128, 157732061), (248, 81410096), (496, 40705048), (992, 20352524), (1297, 15566464), (1984, 10176262), (2594, 7783232), (3923, 5146496), (3968, 5088131), (5188, 3891616), (7846, 2573248), (10376, 1945808), (15692, 1286624), (20752, 972904), (31384, 643312), (40207, 502144), (41504, 486452), (62768, 321656), (80414, 251072), (83008, 243226), (121613, 166016), (125536, 160828)]