20287095

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{313}}^1$

素因数の和:499

約数の個数: 32

約数和(自身を含む): 33912000

約数和(自身を除く): 13624905

約数列:

[1, 3, 5, 15, 29, 87, 145, 149, 313, 435, 447, 745, 939, 1565, 2235, 4321, 4695, 9077, 12963, 21605, 27231, 45385, 46637, 64815, 136155, 139911, 233185, 699555, 1352473, 4057419, 6762365, 20287095]

約数ペア:

[(1, 20287095), (3, 6762365), (5, 4057419), (15, 1352473), (29, 699555), (87, 233185), (145, 139911), (149, 136155), (313, 64815), (435, 46637), (447, 45385), (745, 27231), (939, 21605), (1565, 12963), (2235, 9077), (4321, 4695)]