856575

素因数分解:

$3^6\times 5^2\times {\mathrm{47}}^1$

素因数の和:75

約数の個数: 42

約数和(自身を含む): 1626384

約数和(自身を除く): 769809

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 47, 75, 81, 135, 141, 225, 235, 243, 405, 423, 675, 705, 729, 1175, 1215, 1269, 2025, 2115, 3525, 3645, 3807, 6075, 6345, 10575, 11421, 18225, 19035, 31725, 34263, 57105, 95175, 171315, 285525, 856575]

約数ペア:

[(1, 856575), (3, 285525), (5, 171315), (9, 95175), (15, 57105), (25, 34263), (27, 31725), (45, 19035), (47, 18225), (75, 11421), (81, 10575), (135, 6345), (141, 6075), (225, 3807), (235, 3645), (243, 3525), (405, 2115), (423, 2025), (675, 1269), (705, 1215), (729, 1175)]