20202705

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{137}}^1$

素因数の和:290

約数の個数: 48

約数和(自身を含む): 36812880

約数和(自身を除く): 16610175

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 113, 137, 145, 261, 339, 411, 435, 565, 685, 1017, 1233, 1305, 1695, 2055, 3277, 3973, 5085, 6165, 9831, 11919, 15481, 16385, 19865, 29493, 35757, 46443, 49155, 59595, 77405, 139329, 147465, 178785, 232215, 448949, 696645, 1346847, 2244745, 4040541, 6734235, 20202705]

約数ペア:

[(1, 20202705), (3, 6734235), (5, 4040541), (9, 2244745), (15, 1346847), (29, 696645), (45, 448949), (87, 232215), (113, 178785), (137, 147465), (145, 139329), (261, 77405), (339, 59595), (411, 49155), (435, 46443), (565, 35757), (685, 29493), (1017, 19865), (1233, 16385), (1305, 15481), (1695, 11919), (2055, 9831), (3277, 6165), (3973, 5085)]