8949278540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{419}}^1\times {\mathrm{56207}}^1$

素因数の和:56654

約数の個数: 48

約数和(自身を含む): 19830182400

約数和(自身を除く): 10880903860

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 419, 838, 1676, 2095, 4190, 7961, 8380, 15922, 31844, 39805, 56207, 79610, 112414, 159220, 224828, 281035, 562070, 1067933, 1124140, 2135866, 4271732, 5339665, 10679330, 21358660, 23550733, 47101466, 94202932, 117753665, 235507330, 447463927, 471014660, 894927854, 1789855708, 2237319635, 4474639270, 8949278540]

約数ペア:

[(1, 8949278540), (2, 4474639270), (4, 2237319635), (5, 1789855708), (10, 894927854), (19, 471014660), (20, 447463927), (38, 235507330), (76, 117753665), (95, 94202932), (190, 47101466), (380, 23550733), (419, 21358660), (838, 10679330), (1676, 5339665), (2095, 4271732), (4190, 2135866), (7961, 1124140), (8380, 1067933), (15922, 562070), (31844, 281035), (39805, 224828), (56207, 159220), (79610, 112414)]