20485935

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{439}}^1$

素因数の和:528

約数の個数: 48

約数和(自身を含む): 38301120

約数和(自身を除く): 17815185

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 61, 85, 153, 183, 255, 305, 439, 549, 765, 915, 1037, 1317, 2195, 2745, 3111, 3951, 5185, 6585, 7463, 9333, 15555, 19755, 22389, 26779, 37315, 46665, 67167, 80337, 111945, 133895, 241011, 335835, 401685, 455243, 1205055, 1365729, 2276215, 4097187, 6828645, 20485935]

約数ペア:

[(1, 20485935), (3, 6828645), (5, 4097187), (9, 2276215), (15, 1365729), (17, 1205055), (45, 455243), (51, 401685), (61, 335835), (85, 241011), (153, 133895), (183, 111945), (255, 80337), (305, 67167), (439, 46665), (549, 37315), (765, 26779), (915, 22389), (1037, 19755), (1317, 15555), (2195, 9333), (2745, 7463), (3111, 6585), (3951, 5185)]