1605405

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:201

約数の個数: 32

約数和(自身を含む): 2787840

約数和(自身を除く): 1182435

約数列:

[1, 3, 5, 15, 19, 43, 57, 95, 129, 131, 215, 285, 393, 645, 655, 817, 1965, 2451, 2489, 4085, 5633, 7467, 12255, 12445, 16899, 28165, 37335, 84495, 107027, 321081, 535135, 1605405]

約数ペア:

[(1, 1605405), (3, 535135), (5, 321081), (15, 107027), (19, 84495), (43, 37335), (57, 28165), (95, 16899), (129, 12445), (131, 12255), (215, 7467), (285, 5633), (393, 4085), (645, 2489), (655, 2451), (817, 1965)]