388261520

素因数分解:

$2^4\times 5^1\times {\mathrm{2003}}^1\times {\mathrm{2423}}^1$

素因数の和:4439

約数の個数: 40

約数和(自身を含む): 903531456

約数和(自身を除く): 515269936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2003, 2423, 4006, 4846, 8012, 9692, 10015, 12115, 16024, 19384, 20030, 24230, 32048, 38768, 40060, 48460, 80120, 96920, 160240, 193840, 4853269, 9706538, 19413076, 24266345, 38826152, 48532690, 77652304, 97065380, 194130760, 388261520]

約数ペア:

[(1, 388261520), (2, 194130760), (4, 97065380), (5, 77652304), (8, 48532690), (10, 38826152), (16, 24266345), (20, 19413076), (40, 9706538), (80, 4853269), (2003, 193840), (2423, 160240), (4006, 96920), (4846, 80120), (8012, 48460), (9692, 40060), (10015, 38768), (12115, 32048), (16024, 24230), (19384, 20030)]