78123896

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{2609}}^1$

素因数の和:2831

約数の個数: 32

約数和(自身を含む): 155034000

約数和(自身を除く): 76910104

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 197, 394, 788, 1576, 2609, 3743, 5218, 7486, 10436, 14972, 20872, 29944, 49571, 99142, 198284, 396568, 513973, 1027946, 2055892, 4111784, 9765487, 19530974, 39061948, 78123896]

約数ペア:

[(1, 78123896), (2, 39061948), (4, 19530974), (8, 9765487), (19, 4111784), (38, 2055892), (76, 1027946), (152, 513973), (197, 396568), (394, 198284), (788, 99142), (1576, 49571), (2609, 29944), (3743, 20872), (5218, 14972), (7486, 10436)]