28184910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72269}}^1$

素因数の和:72292

約数の個数: 32

約数和(自身を含む): 72848160

約数和(自身を除く): 44663250

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 72269, 144538, 216807, 361345, 433614, 722690, 939497, 1084035, 1878994, 2168070, 2818491, 4697485, 5636982, 9394970, 14092455, 28184910]

約数ペア:

[(1, 28184910), (2, 14092455), (3, 9394970), (5, 5636982), (6, 4697485), (10, 2818491), (13, 2168070), (15, 1878994), (26, 1084035), (30, 939497), (39, 722690), (65, 433614), (78, 361345), (130, 216807), (195, 144538), (390, 72269)]