2600505

素因数分解:

$3^4\times 5^1\times {\mathrm{6421}}^1$

素因数の和:6438

約数の個数: 20

約数和(自身を含む): 4662372

約数和(自身を除く): 2061867

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 6421, 19263, 32105, 57789, 96315, 173367, 288945, 520101, 866835, 2600505]

約数ペア:

[(1, 2600505), (3, 866835), (5, 520101), (9, 288945), (15, 173367), (27, 96315), (45, 57789), (81, 32105), (135, 19263), (405, 6421)]