20421006464

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{571}}^1\times {\mathrm{9013}}^1$

素因数の和:9629

約数の個数: 64

約数和(自身を含む): 42073025280

約数和(自身を除く): 21652018816

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 571, 992, 1142, 1984, 2284, 3968, 4568, 9013, 9136, 17701, 18026, 18272, 35402, 36052, 36544, 70804, 72104, 73088, 141608, 144208, 279403, 283216, 288416, 558806, 566432, 576832, 1117612, 1132864, 1153664, 2235224, 2265728, 4470448, 5146423, 8940896, 10292846, 17881792, 20585692, 35763584, 41171384, 82342768, 159539113, 164685536, 319078226, 329371072, 638156452, 658742144, 1276312904, 2552625808, 5105251616, 10210503232, 20421006464]

約数ペア:

[(1, 20421006464), (2, 10210503232), (4, 5105251616), (8, 2552625808), (16, 1276312904), (31, 658742144), (32, 638156452), (62, 329371072), (64, 319078226), (124, 164685536), (128, 159539113), (248, 82342768), (496, 41171384), (571, 35763584), (992, 20585692), (1142, 17881792), (1984, 10292846), (2284, 8940896), (3968, 5146423), (4568, 4470448), (9013, 2265728), (9136, 2235224), (17701, 1153664), (18026, 1132864), (18272, 1117612), (35402, 576832), (36052, 566432), (36544, 558806), (70804, 288416), (72104, 283216), (73088, 279403), (141608, 144208)]