28243325

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{3313}}^1$

素因数の和:3365

約数の個数: 24

約数和(自身を含む): 39449856

約数和(自身を除く): 11206531

約数列:

[1, 5, 11, 25, 31, 55, 155, 275, 341, 775, 1705, 3313, 8525, 16565, 36443, 82825, 102703, 182215, 513515, 911075, 1129733, 2567575, 5648665, 28243325]

約数ペア:

[(1, 28243325), (5, 5648665), (11, 2567575), (25, 1129733), (31, 911075), (55, 513515), (155, 182215), (275, 102703), (341, 82825), (775, 36443), (1705, 16565), (3313, 8525)]