28181275

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{751}}^1$

素因数の和:859

約数の個数: 24

約数和(自身を含む): 37299200

約数和(自身を除く): 9117925

約数列:

[1, 5, 19, 25, 79, 95, 395, 475, 751, 1501, 1975, 3755, 7505, 14269, 18775, 37525, 59329, 71345, 296645, 356725, 1127251, 1483225, 5636255, 28181275]

約数ペア:

[(1, 28181275), (5, 5636255), (19, 1483225), (25, 1127251), (79, 356725), (95, 296645), (395, 71345), (475, 59329), (751, 37525), (1501, 18775), (1975, 14269), (3755, 7505)]