215475

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1$

素因数の和:56

約数の個数: 36

約数和(自身を含む): 408456

約数和(自身を除く): 192981

約数列:

[1, 3, 5, 13, 15, 17, 25, 39, 51, 65, 75, 85, 169, 195, 221, 255, 325, 425, 507, 663, 845, 975, 1105, 1275, 2535, 2873, 3315, 4225, 5525, 8619, 12675, 14365, 16575, 43095, 71825, 215475]

約数ペア:

[(1, 215475), (3, 71825), (5, 43095), (13, 16575), (15, 14365), (17, 12675), (25, 8619), (39, 5525), (51, 4225), (65, 3315), (75, 2873), (85, 2535), (169, 1275), (195, 1105), (221, 975), (255, 845), (325, 663), (425, 507)]