81445900

素因数分解:

$2^2\times 5^2\times {\mathrm{167}}^1\times {\mathrm{4877}}^1$

素因数の和:5058

約数の個数: 36

約数和(自身を含む): 177832368

約数和(自身を除く): 96386468

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 167, 334, 668, 835, 1670, 3340, 4175, 4877, 8350, 9754, 16700, 19508, 24385, 48770, 97540, 121925, 243850, 487700, 814459, 1628918, 3257836, 4072295, 8144590, 16289180, 20361475, 40722950, 81445900]

約数ペア:

[(1, 81445900), (2, 40722950), (4, 20361475), (5, 16289180), (10, 8144590), (20, 4072295), (25, 3257836), (50, 1628918), (100, 814459), (167, 487700), (334, 243850), (668, 121925), (835, 97540), (1670, 48770), (3340, 24385), (4175, 19508), (4877, 16700), (8350, 9754)]