28708965

素因数分解:

$3^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1951}}^1$

素因数の和:2074

約数の個数: 32

約数和(自身を含む): 51532800

約数和(自身を除く): 22823835

約数列:

[1, 3, 5, 9, 15, 27, 45, 109, 135, 327, 545, 981, 1635, 1951, 2943, 4905, 5853, 9755, 14715, 17559, 29265, 52677, 87795, 212659, 263385, 637977, 1063295, 1913931, 3189885, 5741793, 9569655, 28708965]

約数ペア:

[(1, 28708965), (3, 9569655), (5, 5741793), (9, 3189885), (15, 1913931), (27, 1063295), (45, 637977), (109, 263385), (135, 212659), (327, 87795), (545, 52677), (981, 29265), (1635, 17559), (1951, 14715), (2943, 9755), (4905, 5853)]