381520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1$

素因数の和:283

約数の個数: 40

約数和(自身を含む): 937440

約数和(自身を除く): 555920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 251, 304, 380, 502, 760, 1004, 1255, 1520, 2008, 2510, 4016, 4769, 5020, 9538, 10040, 19076, 20080, 23845, 38152, 47690, 76304, 95380, 190760, 381520]

約数ペア:

[(1, 381520), (2, 190760), (4, 95380), (5, 76304), (8, 47690), (10, 38152), (16, 23845), (19, 20080), (20, 19076), (38, 10040), (40, 9538), (76, 5020), (80, 4769), (95, 4016), (152, 2510), (190, 2008), (251, 1520), (304, 1255), (380, 1004), (502, 760)]