18020864

素因数分解:

$2^9\times {\mathrm{61}}^1\times {\mathrm{577}}^1$

素因数の和:656

約数の個数: 40

約数和(自身を含む): 36660228

約数和(自身を除く): 18639364

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 128, 244, 256, 488, 512, 577, 976, 1154, 1952, 2308, 3904, 4616, 7808, 9232, 15616, 18464, 31232, 35197, 36928, 70394, 73856, 140788, 147712, 281576, 295424, 563152, 1126304, 2252608, 4505216, 9010432, 18020864]

約数ペア:

[(1, 18020864), (2, 9010432), (4, 4505216), (8, 2252608), (16, 1126304), (32, 563152), (61, 295424), (64, 281576), (122, 147712), (128, 140788), (244, 73856), (256, 70394), (488, 36928), (512, 35197), (577, 31232), (976, 18464), (1154, 15616), (1952, 9232), (2308, 7808), (3904, 4616)]