20385778832

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{941}}^1\times {\mathrm{71263}}^1$

素因数の和:72231

約数の個数: 40

約数和(自身を含む): 41621026560

約数和(自身を除く): 21235247728

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 941, 1882, 3764, 7528, 15056, 17879, 35758, 71263, 71516, 142526, 143032, 285052, 286064, 570104, 1140208, 1353997, 2707994, 5415988, 10831976, 21663952, 67058483, 134116966, 268233932, 536467864, 1072935728, 1274111177, 2548222354, 5096444708, 10192889416, 20385778832]

約数ペア:

[(1, 20385778832), (2, 10192889416), (4, 5096444708), (8, 2548222354), (16, 1274111177), (19, 1072935728), (38, 536467864), (76, 268233932), (152, 134116966), (304, 67058483), (941, 21663952), (1882, 10831976), (3764, 5415988), (7528, 2707994), (15056, 1353997), (17879, 1140208), (35758, 570104), (71263, 286064), (71516, 285052), (142526, 143032)]