28178475

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{28901}}^1$

素因数の和:28927

約数の個数: 24

約数和(自身を含む): 50173872

約数和(自身を除く): 21995397

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 28901, 86703, 144505, 375713, 433515, 722525, 1127139, 1878565, 2167575, 5635695, 9392825, 28178475]

約数ペア:

[(1, 28178475), (3, 9392825), (5, 5635695), (13, 2167575), (15, 1878565), (25, 1127139), (39, 722525), (65, 433515), (75, 375713), (195, 144505), (325, 86703), (975, 28901)]