28766445

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{419}}^1$

素因数の和:649

約数の個数: 32

約数和(自身を含む): 48384000

約数和(自身を除く): 19617555

約数列:

[1, 3, 5, 15, 23, 69, 115, 199, 345, 419, 597, 995, 1257, 2095, 2985, 4577, 6285, 9637, 13731, 22885, 28911, 48185, 68655, 83381, 144555, 250143, 416905, 1250715, 1917763, 5753289, 9588815, 28766445]

約数ペア:

[(1, 28766445), (3, 9588815), (5, 5753289), (15, 1917763), (23, 1250715), (69, 416905), (115, 250143), (199, 144555), (345, 83381), (419, 68655), (597, 48185), (995, 28911), (1257, 22885), (2095, 13731), (2985, 9637), (4577, 6285)]