19500080

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{12829}}^1$

素因数の和:12861

約数の個数: 40

約数和(自身を含む): 47727600

約数和(自身を除く): 28227520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 12829, 25658, 51316, 64145, 102632, 128290, 205264, 243751, 256580, 487502, 513160, 975004, 1026320, 1218755, 1950008, 2437510, 3900016, 4875020, 9750040, 19500080]

約数ペア:

[(1, 19500080), (2, 9750040), (4, 4875020), (5, 3900016), (8, 2437510), (10, 1950008), (16, 1218755), (19, 1026320), (20, 975004), (38, 513160), (40, 487502), (76, 256580), (80, 243751), (95, 205264), (152, 128290), (190, 102632), (304, 64145), (380, 51316), (760, 25658), (1520, 12829)]