83212515

素因数分解:

$3^4\times 5^1\times {\mathrm{205463}}^1$

素因数の和:205480

約数の個数: 20

約数和(自身を含む): 149166864

約数和(自身を除く): 65954349

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 205463, 616389, 1027315, 1849167, 3081945, 5547501, 9245835, 16642503, 27737505, 83212515]

約数ペア:

[(1, 83212515), (3, 27737505), (5, 16642503), (9, 9245835), (15, 5547501), (27, 3081945), (45, 1849167), (81, 1027315), (135, 616389), (405, 205463)]