18444880

素因数分解:

$2^4\times 5^1\times {\mathrm{230561}}^1$

素因数の和:230574

約数の個数: 20

約数和(自身を含む): 42884532

約数和(自身を除く): 24439652

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 230561, 461122, 922244, 1152805, 1844488, 2305610, 3688976, 4611220, 9222440, 18444880]

約数ペア:

[(1, 18444880), (2, 9222440), (4, 4611220), (5, 3688976), (8, 2305610), (10, 1844488), (16, 1152805), (20, 922244), (40, 461122), (80, 230561)]