55406800

素因数分解:

$2^4\times 5^2\times {\mathrm{138517}}^1$

素因数の和:138535

約数の個数: 30

約数和(自身を含む): 133115798

約数和(自身を除く): 77708998

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 138517, 277034, 554068, 692585, 1108136, 1385170, 2216272, 2770340, 3462925, 5540680, 6925850, 11081360, 13851700, 27703400, 55406800]

約数ペア:

[(1, 55406800), (2, 27703400), (4, 13851700), (5, 11081360), (8, 6925850), (10, 5540680), (16, 3462925), (20, 2770340), (25, 2216272), (40, 1385170), (50, 1108136), (80, 692585), (100, 554068), (200, 277034), (400, 138517)]