20768512

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{2617}}^1$

素因数の和:2664

約数の個数: 36

約数和(自身を含む): 42809536

約数和(自身を除く): 22041024

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 992, 1984, 2617, 3968, 5234, 7936, 10468, 20936, 41872, 81127, 83744, 162254, 167488, 324508, 334976, 649016, 669952, 1298032, 2596064, 5192128, 10384256, 20768512]

約数ペア:

[(1, 20768512), (2, 10384256), (4, 5192128), (8, 2596064), (16, 1298032), (31, 669952), (32, 649016), (62, 334976), (64, 324508), (124, 167488), (128, 162254), (248, 83744), (256, 81127), (496, 41872), (992, 20936), (1984, 10468), (2617, 7936), (3968, 5234)]