9987920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6571}}^1$

素因数の和:6603

約数の個数: 40

約数和(自身を含む): 24447840

約数和(自身を除く): 14459920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 6571, 13142, 26284, 32855, 52568, 65710, 105136, 124849, 131420, 249698, 262840, 499396, 525680, 624245, 998792, 1248490, 1997584, 2496980, 4993960, 9987920]

約数ペア:

[(1, 9987920), (2, 4993960), (4, 2496980), (5, 1997584), (8, 1248490), (10, 998792), (16, 624245), (19, 525680), (20, 499396), (38, 262840), (40, 249698), (76, 131420), (80, 124849), (95, 105136), (152, 65710), (190, 52568), (304, 32855), (380, 26284), (760, 13142), (1520, 6571)]