20804938360

素因数分解:

$2^3\times 5^1\times {\mathrm{11423}}^1\times {\mathrm{45533}}^1$

素因数の和:56967

約数の個数: 32

約数和(自身を含む): 46816237440

約数和(自身を除く): 26011299080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 11423, 22846, 45533, 45692, 57115, 91066, 91384, 114230, 182132, 227665, 228460, 364264, 455330, 456920, 910660, 1821320, 520123459, 1040246918, 2080493836, 2600617295, 4160987672, 5201234590, 10402469180, 20804938360]

約数ペア:

[(1, 20804938360), (2, 10402469180), (4, 5201234590), (5, 4160987672), (8, 2600617295), (10, 2080493836), (20, 1040246918), (40, 520123459), (11423, 1821320), (22846, 910660), (45533, 456920), (45692, 455330), (57115, 364264), (91066, 228460), (91384, 227665), (114230, 182132)]