51205475

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:204

約数の個数: 48

約数和(自身を含む): 72019200

約数和(自身を除く): 20813725

約数列:

[1, 5, 19, 23, 25, 43, 95, 109, 115, 215, 437, 475, 545, 575, 817, 989, 1075, 2071, 2185, 2507, 2725, 4085, 4687, 4945, 10355, 10925, 12535, 18791, 20425, 23435, 24725, 47633, 51775, 62675, 89053, 93955, 107801, 117175, 238165, 445265, 469775, 539005, 1190825, 2048219, 2226325, 2695025, 10241095, 51205475]

約数ペア:

[(1, 51205475), (5, 10241095), (19, 2695025), (23, 2226325), (25, 2048219), (43, 1190825), (95, 539005), (109, 469775), (115, 445265), (215, 238165), (437, 117175), (475, 107801), (545, 93955), (575, 89053), (817, 62675), (989, 51775), (1075, 47633), (2071, 24725), (2185, 23435), (2507, 20425), (2725, 18791), (4085, 12535), (4687, 10925), (4945, 10355)]