28531225

素因数分解:

$5^2\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{353}}^1$

素因数の和:477

約数の個数: 24

約数和(自身を含む): 36740952

約数和(自身を除く): 8209727

約数列:

[1, 5, 25, 53, 61, 265, 305, 353, 1325, 1525, 1765, 3233, 8825, 16165, 18709, 21533, 80825, 93545, 107665, 467725, 538325, 1141249, 5706245, 28531225]

約数ペア:

[(1, 28531225), (5, 5706245), (25, 1141249), (53, 538325), (61, 467725), (265, 107665), (305, 93545), (353, 80825), (1325, 21533), (1525, 18709), (1765, 16165), (3233, 8825)]