18899800

素因数分解:

$2^3\times 5^2\times {\mathrm{53}}^1\times {\mathrm{1783}}^1$

素因数の和:1852

約数の個数: 48

約数和(自身を含む): 44796240

約数和(自身を除く): 25896440

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 53, 100, 106, 200, 212, 265, 424, 530, 1060, 1325, 1783, 2120, 2650, 3566, 5300, 7132, 8915, 10600, 14264, 17830, 35660, 44575, 71320, 89150, 94499, 178300, 188998, 356600, 377996, 472495, 755992, 944990, 1889980, 2362475, 3779960, 4724950, 9449900, 18899800]

約数ペア:

[(1, 18899800), (2, 9449900), (4, 4724950), (5, 3779960), (8, 2362475), (10, 1889980), (20, 944990), (25, 755992), (40, 472495), (50, 377996), (53, 356600), (100, 188998), (106, 178300), (200, 94499), (212, 89150), (265, 71320), (424, 44575), (530, 35660), (1060, 17830), (1325, 14264), (1783, 10600), (2120, 8915), (2650, 7132), (3566, 5300)]