28682800

素因数分解:

$2^4\times 5^2\times {\mathrm{71707}}^1$

素因数の和:71725

約数の個数: 30

約数和(自身を含む): 68911388

約数和(自身を除く): 40228588

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 71707, 143414, 286828, 358535, 573656, 717070, 1147312, 1434140, 1792675, 2868280, 3585350, 5736560, 7170700, 14341400, 28682800]

約数ペア:

[(1, 28682800), (2, 14341400), (4, 7170700), (5, 5736560), (8, 3585350), (10, 2868280), (16, 1792675), (20, 1434140), (25, 1147312), (40, 717070), (50, 573656), (80, 358535), (100, 286828), (200, 143414), (400, 71707)]