180007515

素因数分解:

$3^4\times 5^1\times {\mathrm{444463}}^1$

素因数の和:444480

約数の個数: 20

約数和(自身を含む): 322680864

約数和(自身を除く): 142673349

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 444463, 1333389, 2222315, 4000167, 6666945, 12000501, 20000835, 36001503, 60002505, 180007515]

約数ペア:

[(1, 180007515), (3, 60002505), (5, 36001503), (9, 20000835), (15, 12000501), (27, 6666945), (45, 4000167), (81, 2222315), (135, 1333389), (405, 444463)]