18740840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{24659}}^1$

素因数の和:24689

約数の個数: 32

約数和(自身を含む): 44388000

約数和(自身を除く): 25647160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 24659, 49318, 98636, 123295, 197272, 246590, 468521, 493180, 937042, 986360, 1874084, 2342605, 3748168, 4685210, 9370420, 18740840]

約数ペア:

[(1, 18740840), (2, 9370420), (4, 4685210), (5, 3748168), (8, 2342605), (10, 1874084), (19, 986360), (20, 937042), (38, 493180), (40, 468521), (76, 246590), (95, 197272), (152, 123295), (190, 98636), (380, 49318), (760, 24659)]