20356472

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{317}}^1\times {\mathrm{349}}^1$

素因数の和:695

約数の個数: 32

約数和(自身を含む): 40068000

約数和(自身を除く): 19711528

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 317, 349, 634, 698, 1268, 1396, 2536, 2792, 7291, 8027, 14582, 16054, 29164, 32108, 58328, 64216, 110633, 221266, 442532, 885064, 2544559, 5089118, 10178236, 20356472]

約数ペア:

[(1, 20356472), (2, 10178236), (4, 5089118), (8, 2544559), (23, 885064), (46, 442532), (92, 221266), (184, 110633), (317, 64216), (349, 58328), (634, 32108), (698, 29164), (1268, 16054), (1396, 14582), (2536, 8027), (2792, 7291)]