28709925

素因数分解:

$3^1\times 5^2\times {\mathrm{313}}^1\times {\mathrm{1223}}^1$

素因数の和:1549

約数の個数: 24

約数和(自身を含む): 47657664

約数和(自身を除く): 18947739

約数列:

[1, 3, 5, 15, 25, 75, 313, 939, 1223, 1565, 3669, 4695, 6115, 7825, 18345, 23475, 30575, 91725, 382799, 1148397, 1913995, 5741985, 9569975, 28709925]

約数ペア:

[(1, 28709925), (3, 9569975), (5, 5741985), (15, 1913995), (25, 1148397), (75, 382799), (313, 91725), (939, 30575), (1223, 23475), (1565, 18345), (3669, 7825), (4695, 6115)]