20497635

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{139}}^1$

素因数の和:292

約数の個数: 48

約数和(自身を含む): 37346400

約数和(自身を除く): 16848765

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 113, 139, 145, 261, 339, 417, 435, 565, 695, 1017, 1251, 1305, 1695, 2085, 3277, 4031, 5085, 6255, 9831, 12093, 15707, 16385, 20155, 29493, 36279, 47121, 49155, 60465, 78535, 141363, 147465, 181395, 235605, 455503, 706815, 1366509, 2277515, 4099527, 6832545, 20497635]

約数ペア:

[(1, 20497635), (3, 6832545), (5, 4099527), (9, 2277515), (15, 1366509), (29, 706815), (45, 455503), (87, 235605), (113, 181395), (139, 147465), (145, 141363), (261, 78535), (339, 60465), (417, 49155), (435, 47121), (565, 36279), (695, 29493), (1017, 20155), (1251, 16385), (1305, 15707), (1695, 12093), (2085, 9831), (3277, 6255), (4031, 5085)]