28773775

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{857}}^1$

素因数の和:963

約数の個数: 24

約数和(自身を含む): 38301120

約数和(自身を除く): 9527345

約数列:

[1, 5, 17, 25, 79, 85, 395, 425, 857, 1343, 1975, 4285, 6715, 14569, 21425, 33575, 67703, 72845, 338515, 364225, 1150951, 1692575, 5754755, 28773775]

約数ペア:

[(1, 28773775), (5, 5754755), (17, 1692575), (25, 1150951), (79, 364225), (85, 338515), (395, 72845), (425, 67703), (857, 33575), (1343, 21425), (1975, 14569), (4285, 6715)]