28890235

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{307}}^1$

素因数の和:411

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 11026565

約数列:

[1, 5, 11, 29, 55, 59, 145, 295, 307, 319, 649, 1535, 1595, 1711, 3245, 3377, 8555, 8903, 16885, 18113, 18821, 44515, 90565, 94105, 97933, 199243, 489665, 525277, 996215, 2626385, 5778047, 28890235]

約数ペア:

[(1, 28890235), (5, 5778047), (11, 2626385), (29, 996215), (55, 525277), (59, 489665), (145, 199243), (295, 97933), (307, 94105), (319, 90565), (649, 44515), (1535, 18821), (1595, 18113), (1711, 16885), (3245, 8903), (3377, 8555)]