378945

素因数分解:

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

素因数の和:422

約数の個数: 32

約数和(自身を含む): 771840

約数和(自身を除く): 392895

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 401, 945, 1203, 2005, 2807, 3609, 6015, 8421, 10827, 14035, 18045, 25263, 42105, 54135, 75789, 126315, 378945]

約数ペア:

[(1, 378945), (3, 126315), (5, 75789), (7, 54135), (9, 42105), (15, 25263), (21, 18045), (27, 14035), (35, 10827), (45, 8421), (63, 6015), (105, 3609), (135, 2807), (189, 2005), (315, 1203), (401, 945)]