20262500

素因数分解:

$2^2\times 5^5\times {\mathrm{1621}}^1$

素因数の和:1650

約数の個数: 36

約数和(自身を含む): 44348724

約数和(自身を除く): 24086224

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 625, 1250, 1621, 2500, 3125, 3242, 6250, 6484, 8105, 12500, 16210, 32420, 40525, 81050, 162100, 202625, 405250, 810500, 1013125, 2026250, 4052500, 5065625, 10131250, 20262500]

約数ペア:

[(1, 20262500), (2, 10131250), (4, 5065625), (5, 4052500), (10, 2026250), (20, 1013125), (25, 810500), (50, 405250), (100, 202625), (125, 162100), (250, 81050), (500, 40525), (625, 32420), (1250, 16210), (1621, 12500), (2500, 8105), (3125, 6484), (3242, 6250)]