28912575

素因数分解:

$3^1\times 5^2\times {\mathrm{385501}}^1$

素因数の和:385514

約数の個数: 12

約数和(自身を含む): 47802248

約数和(自身を除く): 18889673

約数列:

[1, 3, 5, 15, 25, 75, 385501, 1156503, 1927505, 5782515, 9637525, 28912575]

約数ペア:

[(1, 28912575), (3, 9637525), (5, 5782515), (15, 1927505), (25, 1156503), (75, 385501)]