8840900

素因数分解:

$2^2\times 5^2\times {\mathrm{211}}^1\times {\mathrm{419}}^1$

素因数の和:644

約数の個数: 36

約数和(自身を含む): 19321680

約数和(自身を除く): 10480780

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 211, 419, 422, 838, 844, 1055, 1676, 2095, 2110, 4190, 4220, 5275, 8380, 10475, 10550, 20950, 21100, 41900, 88409, 176818, 353636, 442045, 884090, 1768180, 2210225, 4420450, 8840900]

約数ペア:

[(1, 8840900), (2, 4420450), (4, 2210225), (5, 1768180), (10, 884090), (20, 442045), (25, 353636), (50, 176818), (100, 88409), (211, 41900), (419, 21100), (422, 20950), (838, 10550), (844, 10475), (1055, 8380), (1676, 5275), (2095, 4220), (2110, 4190)]