199451385

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{1579}}^1$

素因数の和:1998

約数の個数: 48

約数和(自身を含む): 396339840

約数和(自身を除く): 196888455

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 401, 1203, 1579, 2005, 2807, 3609, 4737, 6015, 7895, 8421, 11053, 14035, 14211, 18045, 23685, 25263, 33159, 42105, 55265, 71055, 99477, 126315, 165795, 497385, 633179, 1899537, 3165895, 4432253, 5698611, 9497685, 13296759, 22161265, 28493055, 39890277, 66483795, 199451385]

約数ペア:

[(1, 199451385), (3, 66483795), (5, 39890277), (7, 28493055), (9, 22161265), (15, 13296759), (21, 9497685), (35, 5698611), (45, 4432253), (63, 3165895), (105, 1899537), (315, 633179), (401, 497385), (1203, 165795), (1579, 126315), (2005, 99477), (2807, 71055), (3609, 55265), (4737, 42105), (6015, 33159), (7895, 25263), (8421, 23685), (11053, 18045), (14035, 14211)]