15003920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{9871}}^1$

素因数の和:9903

約数の個数: 40

約数和(自身を含む): 36723840

約数和(自身を除く): 21719920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 9871, 19742, 39484, 49355, 78968, 98710, 157936, 187549, 197420, 375098, 394840, 750196, 789680, 937745, 1500392, 1875490, 3000784, 3750980, 7501960, 15003920]

約数ペア:

[(1, 15003920), (2, 7501960), (4, 3750980), (5, 3000784), (8, 1875490), (10, 1500392), (16, 937745), (19, 789680), (20, 750196), (38, 394840), (40, 375098), (76, 197420), (80, 187549), (95, 157936), (152, 98710), (190, 78968), (304, 49355), (380, 39484), (760, 19742), (1520, 9871)]