18736840

素因数分解:

$2^3\times 5^1\times {\mathrm{468421}}^1$

素因数の和:468432

約数の個数: 16

約数和(自身を含む): 42157980

約数和(自身を除く): 23421140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 468421, 936842, 1873684, 2342105, 3747368, 4684210, 9368420, 18736840]

約数ペア:

[(1, 18736840), (2, 9368420), (4, 4684210), (5, 3747368), (8, 2342105), (10, 1873684), (20, 936842), (40, 468421)]