81987904

素因数分解:

$2^6\times {\mathrm{61}}^1\times {\mathrm{21001}}^1$

素因数の和:21074

約数の個数: 28

約数和(自身を含む): 165369748

約数和(自身を除く): 83381844

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 244, 488, 976, 1952, 3904, 21001, 42002, 84004, 168008, 336016, 672032, 1281061, 1344064, 2562122, 5124244, 10248488, 20496976, 40993952, 81987904]

約数ペア:

[(1, 81987904), (2, 40993952), (4, 20496976), (8, 10248488), (16, 5124244), (32, 2562122), (61, 1344064), (64, 1281061), (122, 672032), (244, 336016), (488, 168008), (976, 84004), (1952, 42002), (3904, 21001)]