28207925

素因数分解:

$5^2\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{349}}^1$

素因数の和:473

約数の個数: 24

約数和(自身を含む): 36325800

約数和(自身を除く): 8117875

約数列:

[1, 5, 25, 53, 61, 265, 305, 349, 1325, 1525, 1745, 3233, 8725, 16165, 18497, 21289, 80825, 92485, 106445, 462425, 532225, 1128317, 5641585, 28207925]

約数ペア:

[(1, 28207925), (5, 5641585), (25, 1128317), (53, 532225), (61, 462425), (265, 106445), (305, 92485), (349, 80825), (1325, 21289), (1525, 18497), (1745, 16165), (3233, 8725)]