28157865

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{4801}}^1$

素因数の和:4849

約数の個数: 32

約数和(自身を含む): 49787136

約数和(自身を除く): 21629271

約数列:

[1, 3, 5, 15, 17, 23, 51, 69, 85, 115, 255, 345, 391, 1173, 1955, 4801, 5865, 14403, 24005, 72015, 81617, 110423, 244851, 331269, 408085, 552115, 1224255, 1656345, 1877191, 5631573, 9385955, 28157865]

約数ペア:

[(1, 28157865), (3, 9385955), (5, 5631573), (15, 1877191), (17, 1656345), (23, 1224255), (51, 552115), (69, 408085), (85, 331269), (115, 244851), (255, 110423), (345, 81617), (391, 72015), (1173, 24005), (1955, 14403), (4801, 5865)]