254681505

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{25609}}^1$

素因数の和:25650

約数の個数: 48

約数和(自身を含む): 503390160

約数和(自身を除く): 248708655

約数列:

[1, 3, 5, 9, 13, 15, 17, 39, 45, 51, 65, 85, 117, 153, 195, 221, 255, 585, 663, 765, 1105, 1989, 3315, 9945, 25609, 76827, 128045, 230481, 332917, 384135, 435353, 998751, 1152405, 1306059, 1664585, 2176765, 2996253, 3918177, 4993755, 5659589, 6530295, 14981265, 16978767, 19590885, 28297945, 50936301, 84893835, 254681505]

約数ペア:

[(1, 254681505), (3, 84893835), (5, 50936301), (9, 28297945), (13, 19590885), (15, 16978767), (17, 14981265), (39, 6530295), (45, 5659589), (51, 4993755), (65, 3918177), (85, 2996253), (117, 2176765), (153, 1664585), (195, 1306059), (221, 1152405), (255, 998751), (585, 435353), (663, 384135), (765, 332917), (1105, 230481), (1989, 128045), (3315, 76827), (9945, 25609)]