20005978358

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1987}}^1\times {\mathrm{4657}}^1$

素因数の和:6716

約数の個数: 32

約数和(自身を含む): 32002919424

約数和(自身を除く): 11996941066

約数列:

[1, 2, 23, 46, 47, 94, 1081, 1987, 2162, 3974, 4657, 9314, 45701, 91402, 93389, 107111, 186778, 214222, 218879, 437758, 2147947, 4295894, 5034217, 9253459, 10068434, 18506918, 212829557, 425659114, 434912573, 869825146, 10002989179, 20005978358]

約数ペア:

[(1, 20005978358), (2, 10002989179), (23, 869825146), (46, 434912573), (47, 425659114), (94, 212829557), (1081, 18506918), (1987, 10068434), (2162, 9253459), (3974, 5034217), (4657, 4295894), (9314, 2147947), (45701, 437758), (91402, 218879), (93389, 214222), (107111, 186778)]