20160256

素因数分解:

$2^8\times {\mathrm{61}}^1\times {\mathrm{1291}}^1$

素因数の和:1368

約数の個数: 36

約数和(自身を含む): 40933144

約数和(自身を除く): 20772888

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 128, 244, 256, 488, 976, 1291, 1952, 2582, 3904, 5164, 7808, 10328, 15616, 20656, 41312, 78751, 82624, 157502, 165248, 315004, 330496, 630008, 1260016, 2520032, 5040064, 10080128, 20160256]

約数ペア:

[(1, 20160256), (2, 10080128), (4, 5040064), (8, 2520032), (16, 1260016), (32, 630008), (61, 330496), (64, 315004), (122, 165248), (128, 157502), (244, 82624), (256, 78751), (488, 41312), (976, 20656), (1291, 15616), (1952, 10328), (2582, 7808), (3904, 5164)]