20672200

素因数分解:

$2^3\times 5^2\times {\mathrm{41}}^1\times {\mathrm{2521}}^1$

素因数の和:2578

約数の個数: 48

約数和(自身を含む): 49254660

約数和(自身を除く): 28582460

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 164, 200, 205, 328, 410, 820, 1025, 1640, 2050, 2521, 4100, 5042, 8200, 10084, 12605, 20168, 25210, 50420, 63025, 100840, 103361, 126050, 206722, 252100, 413444, 504200, 516805, 826888, 1033610, 2067220, 2584025, 4134440, 5168050, 10336100, 20672200]

約数ペア:

[(1, 20672200), (2, 10336100), (4, 5168050), (5, 4134440), (8, 2584025), (10, 2067220), (20, 1033610), (25, 826888), (40, 516805), (41, 504200), (50, 413444), (82, 252100), (100, 206722), (164, 126050), (200, 103361), (205, 100840), (328, 63025), (410, 50420), (820, 25210), (1025, 20168), (1640, 12605), (2050, 10084), (2521, 8200), (4100, 5042)]