19781248

素因数分解:

$2^7\times {\mathrm{29}}^1\times {\mathrm{73}}^2$

素因数の和:189

約数の個数: 48

約数和(自身を含む): 41332950

約数和(自身を除く): 21551702

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 73, 116, 128, 146, 232, 292, 464, 584, 928, 1168, 1856, 2117, 2336, 3712, 4234, 4672, 5329, 8468, 9344, 10658, 16936, 21316, 33872, 42632, 67744, 85264, 135488, 154541, 170528, 270976, 309082, 341056, 618164, 682112, 1236328, 2472656, 4945312, 9890624, 19781248]

約数ペア:

[(1, 19781248), (2, 9890624), (4, 4945312), (8, 2472656), (16, 1236328), (29, 682112), (32, 618164), (58, 341056), (64, 309082), (73, 270976), (116, 170528), (128, 154541), (146, 135488), (232, 85264), (292, 67744), (464, 42632), (584, 33872), (928, 21316), (1168, 16936), (1856, 10658), (2117, 9344), (2336, 8468), (3712, 5329), (4234, 4672)]