51576400

素因数分解:

$2^4\times 5^2\times {\mathrm{128941}}^1$

素因数の和:128959

約数の個数: 30

約数和(自身を含む): 123913262

約数和(自身を除く): 72336862

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 128941, 257882, 515764, 644705, 1031528, 1289410, 2063056, 2578820, 3223525, 5157640, 6447050, 10315280, 12894100, 25788200, 51576400]

約数ペア:

[(1, 51576400), (2, 25788200), (4, 12894100), (5, 10315280), (8, 6447050), (10, 5157640), (16, 3223525), (20, 2578820), (25, 2063056), (40, 1289410), (50, 1031528), (80, 644705), (100, 515764), (200, 257882), (400, 128941)]