20015200

素因数分解:

$2^5\times 5^2\times {\mathrm{127}}^1\times {\mathrm{197}}^1$

素因数の和:344

約数の個数: 72

約数和(自身を含む): 49496832

約数和(自身を除く): 29481632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 127, 160, 197, 200, 254, 394, 400, 508, 635, 788, 800, 985, 1016, 1270, 1576, 1970, 2032, 2540, 3152, 3175, 3940, 4064, 4925, 5080, 6304, 6350, 7880, 9850, 10160, 12700, 15760, 19700, 20320, 25019, 25400, 31520, 39400, 50038, 50800, 78800, 100076, 101600, 125095, 157600, 200152, 250190, 400304, 500380, 625475, 800608, 1000760, 1250950, 2001520, 2501900, 4003040, 5003800, 10007600, 20015200]

約数ペア:

[(1, 20015200), (2, 10007600), (4, 5003800), (5, 4003040), (8, 2501900), (10, 2001520), (16, 1250950), (20, 1000760), (25, 800608), (32, 625475), (40, 500380), (50, 400304), (80, 250190), (100, 200152), (127, 157600), (160, 125095), (197, 101600), (200, 100076), (254, 78800), (394, 50800), (400, 50038), (508, 39400), (635, 31520), (788, 25400), (800, 25019), (985, 20320), (1016, 19700), (1270, 15760), (1576, 12700), (1970, 10160), (2032, 9850), (2540, 7880), (3152, 6350), (3175, 6304), (3940, 5080), (4064, 4925)]