20204158156

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{518747}}^1$

素因数の和:518878

約数の個数: 48

約数和(自身を含む): 43923430656

約数和(自身を除く): 23719272500

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 107, 182, 214, 364, 428, 749, 1391, 1498, 2782, 2996, 5564, 9737, 19474, 38948, 518747, 1037494, 2074988, 3631229, 6743711, 7262458, 13487422, 14524916, 26974844, 47205977, 55505929, 94411954, 111011858, 188823908, 222023716, 388541503, 721577077, 777083006, 1443154154, 1554166012, 2886308308, 5051039539, 10102079078, 20204158156]

約数ペア:

[(1, 20204158156), (2, 10102079078), (4, 5051039539), (7, 2886308308), (13, 1554166012), (14, 1443154154), (26, 777083006), (28, 721577077), (52, 388541503), (91, 222023716), (107, 188823908), (182, 111011858), (214, 94411954), (364, 55505929), (428, 47205977), (749, 26974844), (1391, 14524916), (1498, 13487422), (2782, 7262458), (2996, 6743711), (5564, 3631229), (9737, 2074988), (19474, 1037494), (38948, 518747)]