28715780

素因数分解:

$2^2\times 5^1\times {\mathrm{601}}^1\times {\mathrm{2389}}^1$

素因数の和:2999

約数の個数: 24

約数和(自身を含む): 60428760

約数和(自身を除く): 31712980

約数列:

[1, 2, 4, 5, 10, 20, 601, 1202, 2389, 2404, 3005, 4778, 6010, 9556, 11945, 12020, 23890, 47780, 1435789, 2871578, 5743156, 7178945, 14357890, 28715780]

約数ペア:

[(1, 28715780), (2, 14357890), (4, 7178945), (5, 5743156), (10, 2871578), (20, 1435789), (601, 47780), (1202, 23890), (2389, 12020), (2404, 11945), (3005, 9556), (4778, 6010)]